Fertilizers: Substances or mixtures that are added to the soil to supply nutrients or to make available nutrients already present in the soil, in order to increase plant growth and productivity.Nitrogen: An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.Agriculture: The science, art or practice of cultivating soil, producing crops, and raising livestock.Soil: The unconsolidated mineral or organic matter on the surface of the earth that serves as a natural medium for the growth of land plants.Nitrogen Fixation: The process in certain BACTERIA; FUNGI; and CYANOBACTERIA converting free atmospheric NITROGEN to biologically usable forms of nitrogen, such as AMMONIA; NITRATES; and amino compounds.Manure: Accumulations of solid or liquid animal excreta usually from stables and barnyards with or without litter material. Its chief application is as a fertilizer. (From Webster's 3d ed)Crops, Agricultural: Cultivated plants or agricultural produce such as grain, vegetables, or fruit. (From American Heritage Dictionary, 1982)Nitrogen Compounds: Inorganic compounds that contain nitrogen as an integral part of the molecule.Chemistry, Agricultural: The science of the chemical composition and reactions of chemicals involved in the production, protection and use of crops and livestock. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Nitrogen Isotopes: Stable nitrogen atoms that have the same atomic number as the element nitrogen, but differ in atomic weight. N-15 is a stable nitrogen isotope.Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical.Nitrogen Cycle: The circulation of nitrogen in nature, consisting of a cycle of biochemical reactions in which atmospheric nitrogen is compounded, dissolved in rain, and deposited in the soil, where it is assimilated and metabolized by bacteria and plants, eventually returning to the atmosphere by bacterial decomposition of organic matter.Knowledge Bases: Collections of facts, assumptions, beliefs, and heuristics that are used in combination with databases to achieve desired results, such as a diagnosis, an interpretation, or a solution to a problem (From McGraw Hill Dictionary of Scientific and Technical Terms, 6th ed).Umbellularia: A plant genus in the LAURACEAE family. The tree, Umbellularia californica (Hook. & Arn.) Nutt., is known for aromatic leaves used in SPICES having a similar flavor to LAURUS.Sequoia: A plant genus of the family TAXODIACEAE known for including some of the tallest trees.Laurus: A plant genus in the LAURACEAE family. Laurus nobilis L. leaves are known for use in SPICES, having a similar flavor as UMBELLULARIA.Plant Leaves: Expanded structures, usually green, of vascular plants, characteristically consisting of a bladelike expansion attached to a stem, and functioning as the principal organ of photosynthesis and transpiration. (American Heritage Dictionary, 2d ed)Soil Microbiology: The presence of bacteria, viruses, and fungi in the soil. This term is not restricted to pathogenic organisms.Tropical Climate: A climate which is typical of equatorial and tropical regions, i.e., one with continually high temperatures with considerable precipitation, at least during part of the year. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Ganoderma: A genus of fungi in the family Ganodermataceae, order POLYPORALES, containing a dimitic hyphal system. It causes a white rot, and is a wood decomposer. Ganoderma lucidum (REISHI) is used in traditional Chinese medicine (MEDICINE, CHINESE TRADITIONAL).Arecaceae: The palm family of order Arecales, subclass Arecidae, class Liliopsida.Colonialism: The aggregate of various economic, political, and social policies by which an imperial power maintains or extends its control over other areas or peoples. It includes the practice of or belief in acquiring and retaining colonies. The emphasis is less on its identity as an ideological political system than on its designation in a period of history. (Webster, 3d ed; from Dr. J. Cassedy, NLM History of Medicine Division)Guadeloupe: The name of two islands of the West Indies, separated by a narrow channel. Their capital is Basse-Terre. They were discovered by Columbus in 1493, occupied by the French in 1635, held by the British at various times between 1759 and 1813, transferred to Sweden in 1813, and restored to France in 1816. Its status was changed from colony to a French overseas department in 1946. Columbus named it in honor of the monastery of Santa Maria de Guadalupe in Spain. (From Webster's New Geographical Dictionary, 1988, p470 & Room, Brewer's Dictionary of Names, 1992, p221)Natural History: A former branch of knowledge embracing the study, description, and classification of natural objects (as animals, plants, and minerals) and thus including the modern sciences of zoology, botany, and mineralogy insofar as they existed at that time. In the 17th, 18th, and 19th centuries it was much used for the generalized pursuit of certain areas of science. (Webster, 3d ed; from Dr. James H. Cassedy, NLM History of Medicine Division)Zamiaceae: A plant family of the order Cycadales, class Cycadopsida, division CYCADOPHYTA.Gloves, Surgical: Gloves, usually rubber, worn by surgeons, examining physicians, dentists, and other health personnel for the mutual protection of personnel and patient.Citrus: A plant genus of the family RUTACEAE. They bear the familiar citrus fruits including oranges, grapefruit, lemons, and limes. There are many hybrids which makes the nomenclature confusing.History, 19th Century: Time period from 1801 through 1900 of the common era.Phosphorus: A non-metal element that has the atomic symbol P, atomic number 15, and atomic weight 31. It is an essential element that takes part in a broad variety of biochemical reactions.Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Phosphorus, Dietary: Phosphorus used in foods or obtained from food. This element is a major intracellular component which plays an important role in many biochemical pathways relating to normal physiological functions. High concentrations of dietary phosphorus can cause nephrocalcinosis which is associated with impaired kidney function. Low concentrations of dietary phosphorus cause an increase in calcitriol in the blood and osteoporosis.Hydrogen-Ion Concentration: The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH = log 1/2[1/(H+)], where (H+) is the hydrogen ion concentration in gram equivalents per liter of solution. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Online Systems: Systems where the input data enter the computer directly from the point of origin (usually a terminal or workstation) and/or in which output data are transmitted directly to that terminal point of origin. (Sippl, Computer Dictionary, 4th ed)Amino Acids: Organic compounds that generally contain an amino (-NH2) and a carboxyl (-COOH) group. Twenty alpha-amino acids are the subunits which are polymerized to form proteins.Cryptomeria: A plant genus of the family TAXODIACEAE. Its POLLEN is one of the major ALLERGENS.Lipopeptides: Compounds consisting of a short peptide chain conjugated with an acyl chain.Rhinitis, Allergic, Seasonal: Allergic rhinitis that occurs at the same time every year. It is characterized by acute CONJUNCTIVITIS with lacrimation and ITCHING, and regarded as an allergic condition triggered by specific ALLERGENS.Pollen: The fertilizing element of plants that contains the male GAMETOPHYTES.Trees: Woody, usually tall, perennial higher plants (Angiosperms, Gymnosperms, and some Pterophyta) having usually a main stem and numerous branches.Antigens, Plant: Substances found in PLANTS that have antigenic activity.Privacy: The state of being free from intrusion or disturbance in one's private life or affairs. (Random House Unabridged Dictionary, 2d ed, 1993)Blogging: Using an INTERNET based personal journal which may consist of reflections, comments, and often hyperlinks.Flowers: The reproductive organs of plants.Phytoplasma: A genus of minute bacteria in the family ACHOLEPLASMATACEAE that inhabit phloem sieve elements of infected PLANTS and cause symptoms such as yellowing, phyllody, and witches' brooms. Organisms lack a CELL WALL and thus are similar to MYCOPLASMA in animals. They are transmitted by over 100 species of INSECTS especially leafhoppers, planthoppers, and PSYLLIDS.Plant Diseases: Diseases of plants.Soil Pollutants: Substances which pollute the soil. Use for soil pollutants in general or for which there is no specific heading.Freezing: Liquids transforming into solids by the removal of heat.Cryopreservation: Preservation of cells, tissues, organs, or embryos by freezing. In histological preparations, cryopreservation or cryofixation is used to maintain the existing form, structure, and chemical composition of all the constituent elements of the specimens.Cryoprotective Agents: Substances that provide protection against the harmful effects of freezing temperatures.Preservation, Biological: The process of protecting various samples of biological material.Tissue Preservation: The process by which a tissue or aggregate of cells is kept alive outside of the organism from which it was derived (i.e., kept from decay by means of a chemical agent, cooling, or a fluid substitute that mimics the natural state within the organism).
Ammonia volatilization from urea
It is also the cheapest form of granular nitrogen fertilizer. Since urea is not an oxidizer at standard temperature and ... Either yield will be reduced or additional costs will be incurred from additional nitrogen fertilizer. The amount of ammonia ... However, if urea is applied to the soil surface, a meaningful fraction of applied fertilizer nitrogen may be lost to the ... Urea (46-0-0) accounts for more than fifty percent of the world's nitrogenous fertilizers. It is found in granular or prill ...
Only a fraction of the nitrogen-based fertilizers is converted to produce and other plant matter. The remainder accumulates in ... There are also some inexpensive retail granular garden fertilizers made with high purity ingredients. The ... The amount of leaching is correlated with particular soil and pesticide characteristics and the degree of rainfall and ... The excessive use of nitrogen-containing fertilizers (be they synthetic or natural) is particularly damaging, as much of the ...
Environmental impact of pesticides
Root nodule formation in these plants saves the world economy $10 billion in synthetic nitrogen fertilizer every year. ... In addition the amounts of pesticides applied per hectare have declined, in some cases by 99%. However, the global spread of ... Some pesticides come in granular form. Wildlife may eat the granules, mistaking them for grains of food. A few granules of a ... Nitrogen fixation, which is required for the growth of higher plants, is hindered by pesticides in soil. The insecticides DDT, ...
A 50-pound (23 kg) bag of fertilizer labeled 16-4-8 contains 8 lb (3.6 kg) of nitrogen (16% of the 50 pounds), an amount of ... There are also some inexpensive retail granular garden fertilizers made with high purity ingredients. Attention has been ... About 85% of MAP and DAP fertilizers are soluble in water. NPK fertilizers are three-component fertilizers providing nitrogen, ... Legumes, for example, fix nitrogen from the atmosphere and generally do not require nitrogen fertilizer. Fertilizers are ...
A 50-pound (23 kg) bag of fertilizer labeled 16-4-8 contains 8 lb (3.6 kg) of nitrogen (16% of the 50 pounds), an amount of ... Some inexpensive retail granular garden fertilizers are made with high purity ingredients. ... NPK fertilizers. Main article: Labeling of fertilizer. NPK fertilizers are three-component fertilizers providing nitrogen ... Nitrogen fertilizers. Top users of nitrogen-based fertilizer Country Total N use (Mt pa) ...
It must be treated as waste water or is used as fertilizer. The usage of raw starch is relatively small. Starch is mainly used ... That's why clarifier usage enables application of closed cycle which noticeably reduces amount of cleaning water that is needed ... High temperatures cannot be used in this process because of the danger of starch gelatinization which destroys granular ... nitrogen-free substances and 10% water. Because of the full range of the exogenic amino acids the formulation is a valuable ...
It refers to material in either liquid or granular, particulate form, as a mass of relatively small solids, such as petroleum/ ... Bauxite Bulk minerals (sand & gravel, copper, limestone, salt, etc.) Cements Chemicals (fertilizer, plastic granules & pellets ... Liquid Nitrogen Cooking oil Fruit juices Rubber Vegetable oil Zinc ash etc. Port of Port Hedland, Australia Port of Rotterdam ... used as a bellwether for the global economy as it can be interpreted as an indicator of an increase or decrease in the amount ...
... with longevity of 2 to 16 months Potassium Nitrate based granular NPK fertilizers Food phosphates Industrial chemicals Market ... Potassium, along with nitrogen and phosphorus, is one of the three essential plant macronutrients, and is taken up by crops ... from soils in relatively large amounts. The absence or low availability of Potassium results in death of the plant, or poor ... Many of Haifa's fertilizers can be used as a fertilizer solution that is applied through drip irrigation. This latter ...
Nitrogen oxides (NOx) (NOx) refers to nitric oxide (NO) and nitrogen dioxide (NO2). Coal usually contains between 0.5 and 3 ... The CO2 not used in fertilizer manufacture will be used for enhanced oil recovery in the West Texas Permian Basin. Plants such ... For low-grade coals (i.e., "brown coals") which contain significant amounts of water, there are technologies in which no steam ... Blue billy is typically a granular material and was sometimes sold locally with the strap line "guaranteed weed free drives". ...
Å between its nitrogen and carbonyl group, which corresponds well to the 5.9 Å distance that separate the nitrogen and oxygen ... Large amounts of sample material are also needed for such testing. In addition to the biological methods, scientists have used ... Granular activated carbon (GAC) filters have also been tested as a method of biodegradation, but it is inconclusive that they ... The threat posed by anatoxin-a and other cyanotoxins is increasing as both fertilizer runoff, leading to eutrophication in ...
Coating seeds with the bacteria is a newly developed technology that can enable every crop species to fix nitrogen for its own ... Dried filtercake is used as an animal feed supplement, fertilizer, and source of sugarcane wax. Molasses is produced in two ... The next five major producers, in decreasing amounts of production, were India, China, Thailand, Pakistan, and Mexico. The ... granular carbon and char regeneration kilns, regenerated adsorbent transport systems, kilns and handling equipment (at some ...
... granule-covered shingles, and even as a fertilizer. People can be exposed to coke oven emissions in the workplace by inhalation ... Coke is used in preparation of producer gas which is a mixture of carbon monoxide (CO) and nitrogen (N2). Producer gas is ... while losing an appropriate amount of mass. Other blending considerations include ensuring the coke doesn't swell too much ... and nitrogen, made by passing air over red-hot coke (or any carbon-based char) Wastewater from coking is highly toxic and ...
Ceccotti, S. P. (1996). "Plant nutrient sulphur-a review of nutrient balance, environmental impact and fertilizers". Fertilizer ... Small amounts of sulfur dioxide gas addition (or equivalent potassium metabisulfite addition) to fermented wine to produce ... Heal, H. G. (1980). The Inorganic Heterocyclic Chemistry of Sulfur, Nitrogen, and Phosphorus. London: Academic Press. ISBN 0-12 ... a sulfur ointment was used in ancient Egypt to treat granular eyelids. Sulfur was used for fumigation in preclassical Greece; ...
A balanced artificial fertilizer can be used and a 10-10-10 granular product can be spread around the bushes at the rate of .10 ... A "black 'n' black" can be made by adding a small amount of blackcurrant juice to a pint of stout. The head is purple if the ... The blackcurrant requires a number of essential nutrients to be present to enable it to thrive; nitrogen provides strong plant ... The blackcurrant is a gross feeder and benefits from additional nitrogen, and phosphatic and potash fertilisers should also be ...
... can be used as a fertiliser to supply vital nutrients to soils instead of chemical fertilisers that require large amounts of ... Another key consideration is the carbon:nitrogen ratio of the input material. This ratio is the balance of food a microbe ... expanded granular sludge beds and internal circulation reactors. The two conventional operational temperature levels for ... The amount of pretreatment, such as contaminant removal, depends both upon the nature of the waste streams being processed and ...
Jundiz recycling plant
Latest wins fertilizer were obtained a few days ago, as the system 'digestive' of Biocompost takes eight weeks to complete the ... Typical composition of biogas Matter % Methane, CH4 50-75 Carbon dioxide, CO2 25-50 Nitrogen, N2 0-10 Hydrogen, H2 0-1 Hydrogen ... requires end products to meet certain levels of reduction in the amount of bacteria in the output material, this may be a ... Expanded granular sludge bed (EGSB) and Internal circulation reactors (IC). Temperature There are two conventional operational ...
FertilizerEdit. Sulfur is increasingly used as a component of fertilizers. The most important form of sulfur for fertilizer is ... Heal, H. G. (1980). The Inorganic Heterocyclic Chemistry of Sulfur, Nitrogen, and Phosphorus. London: Academic Press. ISBN 978- ... HPLC analysis of "elemental sulfur" reveals an equilibrium mixture of mainly S8, but with S7 and small amounts of S6. ... a sulfur ointment was used in ancient Egypt to treat granular eyelids. Sulfur was used for fumigation in preclassical Greece;[ ...
Hauck, R.D.; Stephenson, H.F. (1964). "Nitrification of triazine nitrogen". Fertilizer Nitrogen Sources. 12 (2): 147-151. doi: ... has set the maximum amount of melamine allowed in powdered infant formula to 1 mg/kg and the amount of the chemical allowed in ... the US Food and Drug Administration reported finding white granular melamine in the pet food, in samples of white granular ... The use of melamine as fertilizer for crops had been envisaged during the 1950s and 1960s because of its high nitrogen content ...
Fertilizer. The majority of the potassium chloride produced is used for making fertilizer, called potash, since the ... The typical amounts of potassium chloride found in the diet appear to be generally safe. In larger quantities, however, ... Glass manufactures use granular potash as a flux, lowering the temperature at which a mixture melts. Because potash confers ... Nitrogen (molecular). *Nitrogen monohydride. *Nitrogen sulfide. *Oxygen (molecular). *Phosphorus monoxide. *Phosphorus ...
Ground bones are used as an organic phosphorus-nitrogen fertilizer and as additive in animal feed. Bones, in particular after ... They are made up mostly of compact bone, with lesser amounts of marrow, located within the medullary cavity, and areas of ... granular material primarily used for filtration and also as a black pigment, is produced by charring mammal bones. Oracle bone ...
Nitrogen fixationEdit. Some sugarcane varieties are capable of fixing atmospheric nitrogen in association with the bacterium ... A sugarcane crop is sensitive to the climate, soil type, irrigation, fertilizers, insects, disease control, varieties, and the ... The next five major producers, in decreasing amounts of production, were India, China, Thailand, Pakistan, and Mexico. ... granular carbon and char regeneration kilns, regenerated adsorbent transport systems, kilns and handling equipment (at some ...
Reduced application of fertilizers (i.e. conservation of nutrients, reducing the need for artificial fertilizer (e.g. soil ... In these instances the reclaimed water is blended with other water supplies and/or sits in storage for a certain amount of time ... When reclaimed water is used for irrigation in agriculture, the nutrient (nitrogen and phosphorus) content of the treated ... biological activated carbon/granular activated carbon, ultrafiltration (UF), chlorination) to reduce associated risks and ...
Potential applications of carbon nanotubes
MWNTs are used in lithium ion batteries cathodes. In these batteries, small amounts of MWNT powder are blended with ... The composite consists of multiwall carbon nanotubes and a ceramic made of silicon, carbon and nitrogen. Including boron boosts ... fertilizers, pesticides and pharmaceuticals. Their magnetic properties make them easier to retrieve once the clean-up job is ... A Comparative Study on Granular Activated Carbon, Activated Carbon Fiber, and Carbon Nanotubes". Environmental Science and ...
... can be used as a fertiliser to supply vital nutrients to soils instead of chemical fertilisers that require large amounts of ... Today, anaerobic digesters are commonly found alongside farms to reduce nitrogen run-off from manure, or wastewater treatment ... expanded granular sludge beds, and internal circulation reactors. ... Fertiliser and soil conditionerEdit. The solid, fibrous component of the digested material can be used as a soil conditioner to ...
Zooplankton provide the polyp with nitrogen, and the polyp shares some of the nitrogen with the zooxanthellae, which also ... Deforestation causes erosion, which releases a large amount of carbon stored in the soil, which then flows into the ocean, ... Increased nutrient levels can be a result of sewage or chemical fertilizer runoff from nearby coastal developments. Runoff can ... Cyanobacteria provide soluble nitrates for the reef via nitrogen fixation.. Coral reefs also often depend on surrounding ...
Hauck, R.D.; H.F. Stephenson (1964). "Nitrification of triazine nitrogen". Fertilizer Nitrogen Sources. 12 (2): 147-151. doi: ... has set the maximum amount of melamine allowed in powdered infant formula to 1 mg/kg and the amount of the chemical allowed in ... the US Food and Drug Administration reported finding white granular melamine in the pet food, in samples of white granular ... The use of melamine as fertilizer for crops had been envisaged during the 1950s and 1960s because of its high nitrogen content ...
Fertilizer. The majority of the potassium chloride produced is used for making fertilizer, called potash, since the ... The typical amounts of potassium chloride found in the diet appear to be generally safe. In larger quantities, however, ... Glass manufacturers use granular potash as a flux, lowering the temperature at which a mixture melts. Because potash confers ... Nitrogen (molecular). *Nitrogen monohydride. *Nitrogen sulfide. *Oxygen (molecular). *Phosphorus monoxide. *Phosphorus ...
Å between its nitrogen and carbonyl group, which corresponds well to the 5.9 Å distance that separate the nitrogen and oxygen ... Granular activated carbon (GAC) filters have also been tested as a method of biodegradation, but it is inconclusive that they ... Large amounts of sample material are also needed for such testing. In addition to the biological methods, scientists have used ... The threat posed by anatoxin-a and other cyanotoxins is increasing as both fertilizer runoff, leading to eutrophication in ...
A 50-pound (23 kg) bag of fertilizer labeled 16-4-8 contains 8 lb (3.6 kg) of nitrogen (16% of the 50 pounds), an amount of ... Some inexpensive retail granular garden fertilizers are made with high purity ingredients. ... NPK fertilizersEdit. Main article: Labeling of fertilizer. NPK fertilizers are three-component fertilizers providing nitrogen, ... Nitrogen fertilizersEdit. Top users of nitrogen-based fertilizer. Country Total N use (Mt pa) ...
Schipka Laurel - New Foliage - Knowledgebase Question - Garden.org
A granular fertilizer applied each spring would normally be adequate. Surprisingly, no fertilizer is better than too much.. ... Another possibility would be overfertilization, particularly with nitrogen. These plants do not require an overly rich soil and ... If fertilizing is necessary, read and carefully follow package instructions and do not exceed recommended amounts. ...
How to Improve Soil Drainage | Garden Guides
What is Phosphate Fertilizer? (with pictures)
The main types of plants that require phosphorus fertilizer... ... Phosphate fertilizer is any fertilizer that is high in ... Complete fertilizers contain amounts of all three of the primary plant nutrients; these are commonly combined into a granular ... A complete fertilizer may be labeled as having a formula of 10-15-20 N-P-K. This means that the fertilizer has 10% nitrogen by ... Phosphate fertilizer is a fertilizer that is high in phosphorous. Most phosphate fertilizer comes from phosphate rock, a ...
A Year-Round Plan for the Perfect Lawn
Cira uses a simple organic, low-nitrogen fertilizer and a separate, granular pest control that targets certain bugs. This keeps ... Grass grows best in soil with a neutral pH (about 6.5 on the pH scale) and a region-appropriate amount of phosphorus, nitrogen ... fertilizer with a weed preventer, or weed-and-feed), he uses a straight fertilizer with high nitrogen content and spot-sprays a ... "If your soil has a good pH and adequate phosphorus and potassium, all you need to do is put down nitrogen fertilizer every once ...
Ammoniacal Nitrogen Fertilizer Vs. Urea Fertilizer | Home Guides | SF Gate
Both urea and ammonium-based fertilizers contain large amounts of nitrogen that help plants perform to their greatest potential ... They use nitrogen to synthesize DNA, RNA, enzymes and other proteins necessary for growth and reproduction. ... For use as a fertilizer, granular urea is processed from ammonia. One benefit of urea is that it contains a significant amount ... Ammoniacal Nitrogen Fertilizer Vs. Urea Fertilizer. Nitrogen fertilizers boost plant health, vigor and production. ...
MindExpo Abstracts 2019 | Doane University
The goal of the research was to investigate which fertilizer had the least amount of nitrogen percolation while also seeing how ... Four different types of fertilizers were used and consisted of three synthetics (one being liquid, two granular) and one ... The amount of water and nitrogen added to the plants is scaled down to be equivalent to nitrogen added to an acre compared to ... The purpose of the research was to understand how the nitrogen in each different type of turf fertilizer moved through the soil ...
Biosolids Effects in Chihuahuan Desert Rangelands: A Ten-Year Study
Over an 82-mo exposure period, total organic carbon, nitrogen, and total and available phosphorus decreased and inorganic ... Biosolids increased soil nitrate-nitrogen. Biosolids increased forage production and improved forage quality. Biosolids ... nitrogen dynamics; biosolids decomposition; and grazing animal behavior and management. Biosolids increased soil water ... urea or monoammonium phosphate in granular form at rates calculated to supply the same amount of plant available nitrogen and/ ...
The Role of Nitrogen Fertiliser in Agriculture - Farzana Panhwar
The efficiency of nitrogen in various soils varies 55-80%.. *The amount of nitrogen fertilizer requirement effect by the ... Ammonium nitrate could be used as nitro-chalk, which contain 16% nitrogen. This product is granular and easy to handle.. ... The organic fertilizer are more expensive than inorganic fertilizers.. Comparison of Nitrogen Fertilizer. A kilo gram of ... Nitrogen is taken up in both cationic (NH4)+ and anionic (NO3-) forms. Nitrogen is used as ammonium fertilizer. Ammonium up ...
OMRI Listed Blood Meal Fertilizer 12-0-0, Down To Earth
In addition, DTE Blood Meal can be combined with other granular fertilizers to formulate custom amendments with specific N-P-K ... This fertilizer is particularly effective when used for heavy feeding plants such as corn, broccoli, spinach, and other leafy ... 12-0-0 is an OMRI Listed fertilizer that delivers a high amount of nitrogen to encourage leaf growth on your vegetables. ... Made from dried blood, Down To Earth Blood Meal, 12-0-0 is an OMRI Listed fertilizer that delivers a high amount of nitrogen to ...
How To Nourish Your Soil - Bunnings Warehouse
Feed with fertiliser Soil improvers do contain very small amounts of nutrients but dont have all the necessary elements to ... "Its important to use a complete fertiliser, which contains nitrogen (N), phosphorus (P) and potassium (K)," says Bunnings ... Fertilisers are available in various forms, including pellets, liquid, powder and granular, all with varying feed times. " ... flower and fruit fertilisers will have higher amounts of potassium, while leafy greens and herbs will have higher amounts of ...
Tags | VCE Publications | Virginia Tech
Enhanced Efficiency Fertilizer Materials: Nitrogen Stabilizers. * Enhanced Efficiency Fertilizer Materials: Nitrogen ... Volatilization losses can be significant with granular urea and urea-ammonium nitrate (UAN) sources, but the amount of loss ... Nitrogen Fertilizer Sources and Properties * Virginia No-Till Fact Sheet Series NUMBER SIX: Nitrogen Fertilizer Sources and ... The recent increase in fertilizer costs, especially nitrogen fertilizers, has resulted in technologies that may improve ...
ACADEMY OF SCIENCES OF THE REPUBLIC OF UZBEKISTAN
... granular superphosphate, nitrogen-phosphorus fertilizer); over the last 6 years (2006 to 2011), the chemical plants JSC " ... produced by the UzAS Institute of Plant Chemistry were exported in the amount for more than 7.6 million USD. ... a number of new industrial technologies for high-performance home-based fertilizers on the basis of Kyzylkum phosphorites ( ... "Samarkandkimyo", JSC "Navoiazot" and JSC "Ferganaazot" manufactured fertilizers of over 480.0 thousand tons worth more than ...
Palm Plant With Dead Leaf Ends | Home Guides | SF Gate
Palm trees need a slow-release, granular palm fertilizer that contains nitrogen, potassium and phosphorous, and trace amounts ... Apply at a rate of 1 1/2 pounds of granular fertilizer per 100 square feet of canopy four times per year, or 1 pound per 100 ... Too much nitrogen may cause leaf burn, where the tips of the lower fronds brown and then die. ... These are available at nurseries and garden centers with nitrogen-phosphorous-potassium ratios of 12-4-12 or 8-2-12. ...
Dahlias - Perennial Plant, How to grow
Marion Ag Service, Inc. | Farm - St. Paul Brand
... provides a high dose of sulfur accompanied with a reasonable amount of nitrogen. Available in a granular and water-soluble form ... MAP is commonly blended with other fertilizers which are then broadcasted onto field crops.. Analysis: 11-52-0 .001% Mo. Brand: ... The high concentration or nitrogen means a little can go a long way. Available in granular and water-soluble forms. Analysis: ... Available in powder or granular form. Analysis: 17% S, 35% Zn Brand: St. Paul Brand Label: Zinc Sulfate Granular Zinc Sulfate ...
Pretty Plants But No Vegetables - Knowledgebase Question - Garden.org
This helps prevent "burn." If you use a granular fertilizer, scratch it into the soil at least 4 inches to the side of the ... These numbers refer to the percentage of nitrogen (N), phosphorous (P), and potassium (K) in the fertilizer. These 3 elements ... are referred to as macronutrients because plants need them in fairly large (i.e., macro) amounts to thrive. How these elements ... You may want to incorporate a balanced fertilizer (e.g., 10-10-10) or add organic fertilizers such as fish emulsion, bone meal ...
summer poisons to keep away from your cat! - sWheat Scoop
... and can accidentally ingest minute amounts of fertilizer. Thankfully, fertilizers generally just cause mild poisoning - signs ... Thats because most fertilizers are natural elements (e.g., nitrogen, potassium, etc.) with low concentrations of insecticides ... if it was a granular product). ... fertilizers. If you recently just applied fertilizer onto your ... Fertilizers rarely result in serious poisoning - that said, to be safe, keep your cat indoors until the product is dried (if it ...
AE248/AE248: Fertilizer Application Best Management Practices for Citrus Grove Workers
Fertilizer Recommendations for Young Trees. Citrus growers in Florida have traditionally applied soluble granular fertilizers 4 ... If not handled properly, fertilizer can be a significant source of water pollution. Nitrogen and phosphorus are of particular ... Suspensions provide an excellent way to apply fertilizer-herbicide mixtures and small amounts of micronutrients uniformly. ... Loading Fertilizer from a Bulk Trailer. Loading Fertilizer. Always load fertilizer into application equipment away from wells ...
Patent USRE43073 - Formulation of phosphorus fertilizer for plants - Google Patents
The concentrated phosphorus fertilizers can be diluted with water of pH ranging from about 6.5 to about 8.5 at ratios of ... concentrate to water at about 1:40 to about 1:600 to result in a fertilizer having a pH in the range acceptable for foliar ... Concentrated phosphorus fertilizers are disclosed that comprise a buffered composition of an organic acid and salts thereof and ... While copper is an element essential to plants, it is required in only small amounts. In relation to nitrogen, plants require, ...
Buy Dark Granular Microbial Fertilizer Rich in Protein and Amino Acids - Vermicompost Organic Fertilizer Manufacture
... amino acid granular fertilizer Distributor online Service suppliers. ... Buy Dark Granular Microbial Fertilizer Rich in Protein and Amino Acids from Vermicompost Organic Fertilizer Manufacture， ... Hydroponic Nitrogen Nutrient Fertilizer Granular - Safer® Brand. TruAmino+ (15-0-0) Hydroponic Nitrogen Nutrient Fertilizer ... 1. Release the soil deposited nutrients and reduce the use amount of inorganic fertilizer more than 40%.. 2. With seaweed as ...
How to Fertilize a Cedar Hedge | eHow
Spread a 30-10-10 granular fertilizer onto the soil using the amount specified for the square footage of the cedar hedge. ... Wait until fall, and then apply to the soil around the cedar hedge a slow-release fertilizer containing high levels of nitrogen ... Reapply the same amount of fertilizer to the cedar hedge in June and in July. Be sure to water well after each application. ... Water the soil well with a garden hose immediately following the fertilizer application until you no longer see any granules on ...
Nitrogen Organic Fertilizer Granule, View Nitrogen Organic Fertilizer Granule, AGING Product Details from Hubei Aging Chemical...
ORGANIC FERTILIZER, Humic Acid, Organic fertilizer.Source from Hubei Aging Chemical Co., Ltd. on Alibaba.com. ... 4. As base fertilizer, apply 200-400kg/ha with appropriate amount compound fertilizer 5-7 days before crops transplanting or 5- ... fertilizer granulation plant disc granulator fertilizer granule making machine rapid mixer granulator garbage fertilizer ... China pharmaceutical granule China urea fertilizer granulator China xinxin disc granulator China machine fertilizer granule ...
liquid fertilizer | LawnSite
Can someone help recommend a liquid fertilizer like a 20-0-14? I am spraying 4 acres and need to get the application ... The granular equivalent is a high potassium greens grade granule that will cost closer to $300 per acre. There is a line of ... I use ammonia nitrogen, nitrate nitrogen, and some CRN, which is a urea polymer that is absorbed into the grass and releases ... nitrogen weeks later. No readily available urea except for the small amount present in the CRN. There is also lots of potassium ...
Understanding Soil: Care for Plants and Flowers - ProFlowers Blog
Small amounts of other nutrients are often part of many plant foods as well. You will find that plant foods are labeled by ... When you add the organic matter you may also want to mix in any lime, sulfur or fertilizer that you need. You never want to ... Plant foods contain three necessary nutrients which include: N-nitrogen, P-phosphorous and K-potassium. Each of these nutrients ... granular complete (place it on the surface or mix it into the soil and water after spreading); water-soluble (mix it with water ...
Application # 2017/0204019. DUST AND ANTICAKING RESISTANT FERTILIZER - Patents.com
A method of reducing dust formation and caking in fertilizer comprising coating the fertilizer in a bituminous emulsion. The ... 3. The fertilizer composite of claim 1 where the fertilizer is granular, crushed, compacted, crystalline, agglomerated, or ... 5. The fertilizer composite of claim 1 further comprising an effective amount of one or more additives where the one or more ... The fertilizer may be a plant nutrient selected from the group consisting of compounds of primary macronutrients (Nitrogen, ...
WP Law, INC. | Turfgrass Disease Control
Balance nitrogen fertilizers with equal amounts of potassium *Avoid nitrogen applications in the fall ... Avoid nitrogen over-fertilization Products Available For Control. Granular. Eagle Fungicide (myclobutanil). Prophesy Fungicide ... Use low to moderate amounts of nitrogen with moderate amounts of phosphorus and moderate to high amounts of potash ... Soil compaction and low amounts of nitrogen fertility may enhance the severity of this disease.. Management Tips: *Increase ...
China White Crystal Powder Industrial Grade Ammonium Sulphate - China Ammonium Sulphate, Fertilizer Ammonium Sulphate
Fertilizer Ammonium Sulphate from White Crystal Powder Industrial Grade Ammonium Sulphate - Zibo Qingxin Chemicals Co., Ltd. ... is mainly used as nitrogen and sulfur fertilizer, usually appeared in granular type. Ammonium Sulphate is particularly ... the ammonium ion is released and forms a small amount ich lowering the pH balance of the soil, while contributing ... Ammonium Sulphate, Fertilizer Ammonium Sulphate, Granular Fertilizer Ammonium Sulphate manufacturer / supplier in China, ...
Examples of Artificial Fertilizers | Garden Guides
Synthetic fertilizers tend to have higher and faster acting doses than the similar compounds found naturally occurring in soil ... Artificial fertilizers are those products that use chemical compounds to synthetically mimic natural minerals and elements ... that represents the amount of nitrogen, phosphorus and potassium respectively. ... It typically comes in granular or crystalline form that is dissolved by water and is deposited on top of the soil or into the ...
Liquid Nitrogen Calculator - Lawn Phix
Easily calculate ounces of liquid fertilizer to deliver the right amount of Nitrogen for your lawn. ... Also have granular fertilizer? Check out the original Nitrogen Calculator!. This liquid nitrogen calculator takes the guess ... Need to calculate granular fertilizer? Check out our original Nitrogen Calculator!. As always - read the label! There may be ... To do the math on how to calculate the amount of nitrogen in liquid fertilizer, lets take CoROn 18-3-6 Plus 0.5% as an example ...
NutrientSulfurPotashPhosphorous and potassiumCropsPhosphorus fertilizerInorganicSoilsMicronutrientsMacronutrientsSoluble2019Organic matterPlantCalciumVolatilizationCompound NPK FertilizerManureEfficiencyHumic AcidFixationFormulationUptakeApply a granularComes in granularApplicationLiquid or granularPotassium HumateSlow-release nitrogenPhosphate fertilizerContains nitrogenUrea basedBlendChemical fertilizersPurityPound of Nitrogen per 1,000Urease inhibitorHigh nitrogenForm of nitrogenLevels of nitrogenBoronLawn FertilizerNitrate-nitrogenSmall amountsFoliarCrop yieldsYieldEqual amounts of nitrogen
- Down To Earth's Blood Meal is High in Nitrogen - A Key Nutrient For Leafy Greens & Healthy Bulbs! (arbico-organics.com)
- Implementing appropriate nutrient management practices and taking care with the placement of fertilizer materials helps maintain or improve agricultural productivity while minimizing environmental risk. (ufl.edu)
- If you're just fertilizing grass, choose a fertilizer that is particularly high in nitrogen, since that's the nutrient that helps plants grow lush and green. (wikihow.com)
- SRF 12-0-24 is a homogenous particle fertilizer, designed to provide uniform nutrient release distribution. (tanthanhson.com)
- The granules' size, shape, and density are closely controlled so that each granule has consistent percentages of each nutrient. (rainbowplantfoodproducts.com)
- The pragmatic approach will be to develop the integrated nutrient supply system involving a combination of the use of chemical fertilizers and biofertilizers. (preservearticles.com)
- 1)It has abundant nutrient and long fertilizer efficiency. (fitnesshealthandwellnesscenter.com)
- Traditional fertilizer blends containing B struggle to achieve uniform nutrient distribution. (cornandsoybeandigest.com)
- Nutrient Based Subsidy for fertilizers w.e.f. 01.04.2014 (Ministry of Chemicals and Fertilizers), Filed Under: solar fertilizer posted by Dr. Robert Bridwell. (milkconceptstore.com)
- Organic fertilizers include naturally occurring materials such as barnyard manure, compost, or blood meal, and are normally much lower in nutrient content than are manufactured inorganic fertilizers. (thecanadianencyclopedia.ca)
- Therefore, a much larger volume of fertilizer must be applied to meet the nutrient requirements of crops, increasing the transportation costs. (thecanadianencyclopedia.ca)
- Allganic® Potassium provides natural Potassium Sulfate, the only source of natural potassium without chlorine, complementing Allganic® Nitrogen to achieve high quality and nutrient balanced crops. (nebraskahumic.com)
- Lawn Fertilizer With Weed Killer - 800 G. Florida citrus growers are well aware that nitrogen (N) is the single most important nutrient applied as a fertilizer to assure maximum yield and fruit quality. (floodresiliencity.eu)
- But anhydrous ammonia has the highest nutrient content of any fertilizer. (lyrikwelt.eu)
- Chemically, dry preparations of ammonium sulfate generally contain 21 percent nitrogen and 24 percent sulfur. (sfgate.com)
- Description: A common fertilizer staple in the industry, ammonium sulfate, provides a high dose of sulfur accompanied with a reasonable amount of nitrogen. (marionag.com)
- When you add the organic matter you may also want to mix in any lime, sulfur or fertilizer that you need. (proflowers.com)
- Sulfur, the remaining macronutrient, may not be a component of the fertilizer and should not be overlooked. (marconews.com)
- Look for fertilizer containing sulfur coated urea nitrogen. (marconews.com)
- Oil impurities that might injure plants, such as aromatic compounds and compounds containing sulfur, nitrogen or oxygen, are removed. (lsuagcenter.com)
- Natural Vigor 25-6-8 combines 45 percent controlled-release nitrogen from biosolids with polymer-coated, sulfur-coated urea. (turfmagazine.com)
- The lime and sulfur slurry is aerated to create calcium sulfate, dewatered to produce high-quality gypsum, and then processed to make fertilizer at the adjacent Charah facility (Figure 2). (zenitor.be)
- Sulfur and a natural balance of micro elements as much as its amount are essential to produce more nutritious food with high quality proteins. (nebraskahumic.com)
- Acts as A Fertilizer The magnesium and sulfur present in Epsom salt are equally good for plants. (lyrikwelt.eu)
- A fortnight before planting, topdress the ground with a general granular fertilizer containing a higher amount of potash in comparison with the nitrogen and phosphate content Root crop fertilizers have this analysis, and potato fertilizers are very good for the purpose. (backyardgardener.com)
- Potassium (symbol K) sometimes called potash Starter fertilizers and winterizers provide extra phosphorus for root growth. (upcaring.eu)
- A Simple Lawn Solution's Superior Nitrogen & Potash 15-0-15 NPK is an effective natural liquid fertilizer that works well for various plants in your lawn. (soilcrust.org)
- Today, deposits of potassium-bearing minerals are mined and processed to compound potash into a more usable, granular form. (karolinfelix.com)
- Astonishingly, the amount of potash produced worldwide each year exceeds 30 million tonnes. (karolinfelix.com)
- While most potash is used in various types of fertilizers, there are many other non-agricultural purposes for this element. (karolinfelix.com)
- Modern processing, such as potash compaction, produces a readily available form of potassium, leaving granular potash open to a myriad of uses. (karolinfelix.com)
- Potash contains soluble potassium, making it an excellent addition to agricultural fertilizer. (karolinfelix.com)
- Potash compaction granules blend easily into fertilizers, delivering potassium where it is needed most. (karolinfelix.com)
- Glass manufactures use granular potash (potassium carbonate) as a flux, lowering the temperature at which a mixture melts. (karolinfelix.com)
- Granular application of non-burning slow release fertilizer with a high rate of sulfate of potash. (baileystreeandlandscape.com)
- After potassium is mined as potash, potassium chloride (KCl) is separated from the mixture, resulting in a granular fertilizer. (progressivegardening.com)
Phosphorous and potassium1
- This is mixed with water to create a number of similar fertilizer compounds in a concentrated liquid form which is easy to apply to fields and crops. (wisegeek.com)
- MAP is commonly blended with other fertilizers which are then broadcasted onto field crops. (marionag.com)
- 4. As base fertilizer, apply 200-400kg/ha with appropriate amount compound fertilizer 5-7 days before crops transplanting or 5-7 days after harvest. (alibaba.com)
- It is rich in Nitrogen nutrition, medium element, and contain bio-fulvic acid, which satisfy the requirements of crops. (alibaba.com)
- 3. Nitrogen is the main component of protein in crops. (alibaba.com)
- As infective L3 larvae migrate up the blades of forage crops during mornings and evenings with the dew, we sprayed pastures with liquid nitrogen fertilizer starting at 6:30 AM or after 4PM depending on weather conditions. (ncsu.edu)
- Boron is critical to the growth and health of crops but is needed in small amounts, making it crucial for boron to be delivered evenly in the field. (cornandsoybeandigest.com)
- An adequate amount of B is also required for effective nitrogen fixation and nodulation in legume crops. (cornandsoybeandigest.com)
- Calcium Magnesium Nitrate Granular could supply Calcium and Magnesium to the crops to promote flowing and fruiting N 13 6 min CaO 16 MgO 5 8 Size 2 4mm Insoluble in water 0 1 Fully water soluble and ideal for fertigation foliar application direct soil application and production of fertilizer blends and nutrient. (wsfertilizer.com)
- Agricultural Grade High quality Calcium Magnesium Nitrate As one type of potassium fertilizer potassium sulphate SOP promotes stress tolerance of majority of crops which represents in whole growing periods After application of SOP stems of plant could grow strong represents lodging resistance boost flowering enhance. (wsfertilizer.com)
- Crops that receive massive amounts of rain early in the season (April and May) typically aren't in as much danger of losing N because it hasn't yet converted to the nitrate form. (hayandforage.com)
- however, many of the management practices can be applied to grain sorghum, wheat or other crops requiring nitrogen in no-till systems. (missouri.edu)
- The availability of nitrogen to crops is affected by surface crop residues. (missouri.edu)
- Nitrogen in the organic form is unavailable to crops. (missouri.edu)
- Nitrogen in the inorganic form (nitrate and ammonium) is available to growing crops. (missouri.edu)
- Among other benefits, Nitrogen helps plants grow quickly, while also increasing the production of seed and fruit, and bettering the quality of leaf and forage crops. (made-in-china.com)
- NPK, Organic Chemical, NPK Fertilizer manufacturer / supplier in China, offering NPK Water Soluble Fertilizer (30-10-10+TE) Fertilizer Manufacturer, Fertilizer Monopotassium Phosphate MKP 0-52-34 99%, NPK 10-26-26 Fertilizer Suitable for Ecomic Crops and so on. (made-in-china.com)
- In addition, nickel (Ni) has been shown to be necessary for legumes and cereal crops, and cobalt (Co) is also needed for some crops, including legumes where it is required for nitrogen fixation. (thecanadianencyclopedia.ca)
- To grow more crops people have been transforming nitrogen from the atmosphere into nitrogen fertilizers and then adding the fertilizers to the plants. (floodresiliencity.eu)
- thereby forming said concentrated phosphorus fertilizer which analyzes to about 0.30 kg/L P 2 O 5 or greater. (google.com)
- 2. The concentrated phosphorus fertilizer according to claim 1 , wherein said phosphorous source is a member selected from the group consisting of a phosphorous-containing acid, a salt of a phosphorous-containing acid, and combinations thereof. (google.com)
- 3. The concentrated phosphorus fertilizer according to claim 1 , wherein said about 0.30 kg/L P 2 O 5 or greater is from about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 . (google.com)
- 4. The concentrated phosphorus fertilizer according to claim 1 , wherein the quantity of said phosphorous source is sufficient so that said concentrated phosphorus fertilizer analyzes to about 0.30 kg/L P 2 O 5 to about 0.40 kg/L P 2 O 5 . (google.com)
- 6. The concentrated phosphorus fertilizer according to claim 1 , wherein said concentrated phosphorus fertilizer has a pH of about 5.0 to about 7.0. (google.com)
- 8. The concentrated phosphorus fertilizer according to claim 1 , wherein said concentrated phosphorus fertilizer is essentially clear and devoid of precipitate. (google.com)
- 11. The concentrated phosphorus fertilizer according to claim 1 , further comprising an organic acid. (google.com)
- 12. The concentrated phosphorus fertilizer according to claim 11 , wherein said organic acid is a member selected from the group consisting of a dicarboxylic acid and a tricarboxylic acid. (google.com)
- 13. The concentrated phosphorus fertilizer according to claim 11 , wherein said organic acid is a member selected from the group consisting of pyruvic, succinic, fumaric, malic, formic, oxaloacetic, cis-aconitic, isocitric and α-ketoglutaric acid. (google.com)
- 14. The concentrated phosphorus fertilizer according to claim 11 , wherein said organic acid is citric acid. (google.com)
- Where high annual rates of phosphorus fertilizer are used, this can result in uranium-238 concentrations in soils and drainage waters that are several times greater than are normally present. (wikipedia.org)
- We are proud to be part of a solution that will ultimately help protect the Mississippi River Basin, and provide revenue to the District from the sale of the high value phosphorus fertilizer recovered to benefit ratepayers. (ostara.com)
- The how to make homemade phosphorus fertilizer nitrogen uses first cannabis-based medicine has been high phosphorus potassium fertilizer make tomatoes grow tomato plants more how approved for use in the UK by sufferers of Multiple Sclerosis - MS and named Sativex. (lyrikwelt.eu)
- Over an 82-mo exposure period, total organic carbon, nitrogen, and total and available phosphorus decreased and inorganic matter increased. (hindawi.com)
- Fertilizers are available as organic (plant or animal derived) or inorganic (man-made from chemicals). (gardendesign.com)
- Because of concern about their harmful effects on humans and on ecological systems Fertilizer is organic or inorganic material containing one or more of the nutrientsmainly nitrogen Nitrogen fertilizer washing from farms into surface waters promotes overgrowth of aquatic vegetation which Citrus trees and fruit trees Las Vegas - Grow your own fruit and citrus with our huge selection of fruit and citrus trees! (upcaring.eu)
- The production of inorganic nitrogen fertilizer has increased rapidly Growing Tomatoes Indoors In Winter Lighting Tree growing tomatoes in northern florida eating cats bone meal Money Best Plant For in the past few decades. (upcaring.eu)
- A multivalent nonmetal of the nitrogen group, phosphorus as a mineral is almost always present in its maximally oxidized state, as inorganic phosphate rocks. (absoluteastronomy.com)
- Inorganic fertilizers exclude carbon-containing materials except ureas . (wikipedia.org)
- Inorganic are sometimes called synthetic fertilizers since various chemical treatments are required for their manufacture. (wikipedia.org)
- Fertilizer can be inorganic (chemical) or organic. (thecanadianencyclopedia.ca)
- This raw ore is occasionally used as a fertilizer without any further processing, especially in acid soils, where it serves the dual purpose of raising pH. (wisegeek.com)
- Unlike the other inhibitors, coated-fertilizers do not inhibit any process within the soils system but slowly release N from the coated source throughout the season. (louisianacrops.com)
- Wet, saturated soils certainly complicate issues associated with nitrogen fertilization of wheat fields in the Mid-South and we have had our fair share early this spring. (mississippi-crops.com)
- The pH of the solution surrounding the granule is moderately acidic, making MAP an especially desirable fertilizer in neutral and high pH soils. (chemicalbook.com)
- This makes it an all-weather fertilizer.The fertilizer works well in sandy soils. (soilcrust.org)
- This service, part of the overall EncircaSM services package, can help growers assess weather, soils, agronomy and analytics to maximize crop yields, with a focus on optimization of key inputs like nitrogen. (hayandforage.com)
- This can result in a greater nitrogen requirement for these soils when they are no-tilled rather than plowed. (missouri.edu)
- On sandy coastal plain soils where nitrogen is subject to leaching, apply 20-25 lb per acre at planting with the remainder sidedressed shortly after formation of squares. (ncdcr.gov)
- On deeper sandy soils where leaching is extensive, apply sidedressed nitrogen in split applications. (ncdcr.gov)
- High-phosphate starter fertilizer (10-34-0), banded at planting, can enhance growth and maturity for cotton planted early on cool soils. (ncdcr.gov)
- An extended release nitrogen blend formulated Nitroform and fortified with micronutrients. (marionag.com)
- Plants need a mixture of nitrogen (N), phosphorus (P), potassium (K), and other micronutrients in order to grow healthy and lush. (wikihow.com)
- In addition to having less salts and fewer impurities (which can be dangerous), most of the fertilizers we offer contain a full package of micronutrients as well. (sprinklerwarehouse.com)
- However, it is essential that all micronutrients be provided in your fertilizer program at least once a year. (marconews.com)
- Neptune's Harvest organic fertilizer is made from fresh fish and contains macro and micronutrients, vitamins, amino acids, omega oils and more. (turfmagazine.com)
- Advances in fertilizer technology reduce the residual addition of micronutrients. (napnutriscience.com)
- Therefore, both granular and fluid NPK fertilizers are commonly used as carriers of micronutrients. (napnutriscience.com)
- Including micronutrients with mixed fertilizers is a convenient method of application, and allows more uniform distribution with conventional application equipment. (napnutriscience.com)
- The primary macronutrients are removed in the greatest amounts and so their addition in fertilizers is more commonly required than are the micronutrients, which are depleted much more slowly. (thecanadianencyclopedia.ca)
- The water soluble super phosphate fertilizer is sometimes packaged and shipped in granular form to reduce shipping costs. (wisegeek.com)
- Available in a granular and water-soluble form. (marionag.com)
- Acts quickly because its nitrogen is highly soluble and available to grasses immediately after application and watering in. (scottsaustralia.com.au)
- Remember to use a bio-stimulant product if you use synthetic blends of water soluble fertilizers. (sprinklerwarehouse.com)
- Most water soluble fertilizers have 50% to 100% higher concentration levels than liquid fertilizers since they do not have to be held in solution. (sprinklerwarehouse.com)
- pack Size: 20 kg (50 bags per tonne) Suitable for guarantEEd analySiS 15% total Nitrogen (N) 7.5% Ammoniacal Nitrogen 1.1% urea Nitrogen 3.8% other Water Soluble Nitrogen from Methylene Ureas. (milkconceptstore.com)
- Hebei Monband Water Soluble Fertilizer Co., Ltd. (wsfertilizer.com)
- Monband Water Soluble AS Ammonium Sulfate Caprolactam Granular Straight Fertilizer It is a new high efficient compound fertilizer It is granular and dissolves in water absolutely It can quickly supply Nitrogen Calcium and Magnesium to plants It has growth function on root stem leaf of the crop and used in greenhouse. (wsfertilizer.com)
- NPK Fertilizer, Water Soluble Fertilizer, NPK Compound Fertilizer manufacturer / supplier in China, offering Chinese Foliar Fertilizer 100% Water Soluble NPK Fertilizer 19-19-19+Te, Best Price Diammonium Phosphate 18-46-0 DAP, Good Quality Urea for Agricultural Use and so on. (eda-advies.nl)
- NPK, 100% Water Soluble NPK, Water Soluble NPK manufacturer / supplier in China, offering 100% Water Soluble Fertilizer NPK Compound Fertilizer 19-19-19, Urea 46 Price Granular Urea From China Manufacture, Water Soluble Fertilizer Manufacture Compound NPK 31-11-11 and so on. (eda-advies.nl)
- Alibaba offers 11,024 npk water soluble fertilizer products. (eda-advies.nl)
- FNF is China water soluble NPK fertilizer manufacturer. (eda-advies.nl)
- Water soluble NPK fertilizer is most suitable for foliar application and irrigation application, produced with high quality raw materials to achieve completely water soluble, characterized by quick absorbtion and assimilation into the plant. (eda-advies.nl)
- Monband Water Soluble Fertilizer Co.,ltd is one of the biggest manufacturer of water soluble fertilizers in China. (eda-advies.nl)
- China 100% water soluble NPK water soluble fertilizer 19-19-19 with High-Quality, Leading 100% water soluble NPK water soluble fertilizer 19-19-19 Manufacturers & Suppliers, find 100% water soluble NPK water soluble fertilizer 19-19-19 Factory & Exporters. (eda-advies.nl)
- Qingdao Greenery Chemical Co., Ltd., Experts in Manufacturing and Exporting NPK Fertilizer, Water soluble NPK and 301 more Products. (eda-advies.nl)
- More than 90% of a typical superphosphate fertilizer is water-soluble. (wikipedia.org)
- Normally, the fertilizer is provided in a soluble form that is very quickly available for crop uptake. (thecanadianencyclopedia.ca)
- Compost is a decomposed type of organic matter that is reused as a fertilizer. (proflowers.com)
- Other good types of organic matter which can be used as a fertilizer include: well-rotted manure, leaves, peat moss, grass clippings, organic mulches and topsoil. (proflowers.com)
- Growing soybeans immediately after CRP allows more time for organic matter to decompose and increases the amount of organic nitrogen available to a succeeding corn crop. (missouri.edu)
- Nitrogen fertilizers boost plant health, vigor and production. (sfgate.com)
- The chemical form of nitrogen found in urea is not readily available for plant uptake. (sfgate.com)
- The form of nitrogen it contains is immediately available for plant uptake. (sfgate.com)
- Moreover, the aim was to measure and evaluate the physico-chemical properties of organic materials and the obtained organo-mineral fertilizer products and to study the effects of these products on the selected yield components of spring wheat such as grain yield per plant, spike number per plant, and plant height, in pot trials. (springer.com)
- Thus, humic acid products mainly as plant growth enhancers and as ingredients of fertilizer products are widely distributed throughout the world. (springer.com)
- A proportion of ammonium ions displace from the colloids an equivalent amount of calcium, magnesium and potassium ions, which are absorbed by growing plant. (eco-web.com)
- Nitrogen, phosphorus, and potassium are three of the 15 essential elements for plant and animal growth and are necessary to maintain profitable citrus production. (ufl.edu)
- Nitrogen generally regulates aquatic plant growth in aquatic systems. (ufl.edu)
- The amino acid organic fertilizer is a plant origin product, in black and black brown granular. (davidantoniocruz.com)
- How to select the best type of fertiliser for your specific plant? (articlecity.com)
- A method for treating a seedling by dipping the roots of the seedling into a composition containing a slow release, particulate urea-formaldehyde polymer, which is useful as a fertilizer for enhancing the extended delivery of nitrogen needed for plant development and growth and to the composition useful. (google.com)
- Chlorine ordinarily is not valued as a plant food in fertilizer. (marconews.com)
- The SRF 19-0-19 provides equal amounts of nitrogen and potassium to help toughen the plant against stresses. (tanthanhson.com)
- That's why we created Rainbow plant food - to ensure your plants get the balanced nutrition they need from each uniform granule. (rainbowplantfoodproducts.com)
- Nitrogen nutrition primarily influences vegetative biomass and plant heath, rather than maturity, so it is not as critical as other factors affecting wheat maturation. (mississippi-crops.com)
- Urea is the main productfor making nitrogen available to plant. (fitnesshealthandwellnesscenter.com)
- Only a fraction of the nitrogen-based fertilizers is converted to produce and other plant matter. (wikipedia.org)
- However, the impact of these increases on the risk to human health from radinuclide contamination of foods is very small (less than 0.05 mSv/y). Other metals Steel industry wastes, which are recycled into fertilizers for their high levels of zinc (essential to plant growth), can include the following toxic metals: lead, arsenic, cadmium, chromium, and nickel. (wikipedia.org)
- In all cases, the addition of the compost increased water holding capacity and plant growth, so composting simultaneously solved environmental pollution problems and produced a useful organic fertilizer. (fao.org)
- Their effectiveness as fertilizers is also sometimes attributed to the trace elements they contain, but the actual contribution they make is very small compared to normal plant requirements. (fao.org)
- Practically all agree that the maize plant does not respond as readily to the use of commercial fertilizers as do the smaller cereals which are sown broadcast and thus have so many more plants to the acre, and which grow during a cooler portion of the year. (google.com.mx)
- Fertilizer nitrogen treatment had no impact on total plant dry weight, total plant N, yield or fruit quality from the first through the third fruiting seasons. (ashs.org)
- Maximum fertilizer use efficiency was 42% for a granular 55 kg·ha -1 application at renovation, but declined to 42% just before plant growth the following spring, likely a result of FN loss in leaves that senesced. (ashs.org)
- The following June, 15% of plant nitrogen was derived from fertilizer applied at renovation 2 years prior. (ashs.org)
- Nickel (Ni) is important in plant nitrogen metabolism because it is a component of the urease enzyme. (napnutriscience.com)
- NPK fertilizer is primarily composed of three main elements: Nitrogen (N), Phosphorus (P), and Potassium (K), each of these being essential in plant nutrition. (made-in-china.com)
- A special fertilizer blend that provides ample nitrogen for vigorous growth, extra phosphorous for beautiful blooms and potassium and trace elements for healthy plant stock. (hydroponics.net)
- Mother Earth Farmer's Market All Purpose Mix 4-5-4 is a granular plant fertilizer for all plants, flowers and tomatoes. (hydroponics.net)
- Organic fertilizers are usually (recycled) plant- or animal-derived matter. (wikipedia.org)
- When the elements that are essential for plant growth are not present in sufficient quantities or in the proper balance in agricultural systems, fertilizers can be applied to enhance plant growth and quality. (thecanadianencyclopedia.ca)
- The report "Nitrogenous Fertilizers Market By Active Ingredient (Urea Ammonium Nitrate Sodium Nitrate Ammonium Sulfate CAN UAN Calcium Nitrate Ammonium Chloride) How To Grow Tomatoes In Containers Videos Leaves Plant Tomato How Trim By Crop Type May 5 2014 - 08:22 pm. (rifugiodisolin.eu)
- About the Author denise1 auckland NZ 9th fertilizer arborvitae trees tomato needs plant watering October 2012 12:00pm #UserID: 6832 Posts: 262. (floodresiliencity.eu)
- Maerl is a fertilizer derived from red seaweeds that grow with a crust of calcium carbonate on the outside, the calcareous red algae, Phymatolithon calcareum and Lithothamnion corallioides . (fao.org)
- A few percent of the nitrogen fertilizer market (4% in 2007) has been met by calcium ammonium nitrate (Ca(NO 3 ) 2 · NH 4 NO 3 · 10 H 2 O ). (wikipedia.org)
- We are the leader of prime calcium fertilizer composite fertilizer organic fertilizer supplier and korea fertilizer. (rifugiodisolin.eu)
- It is important that there is adequate moisture because up to thirty percent of the available nitrogen can be lost through atmospheric volatilization within seventy-two hours of application. (wikipedia.org)
- The soil's pH also has a strong effect on the amount of volatilization. (wikipedia.org)
- With surface application of granular fertilizers, volatilization is the primary potential loss, at least during early season when adequate moisture does not exist. (louisianacrops.com)
- When these same fertilizers are incorporated, such as being knifed-in in lieu of surface-applied, as little as 1-5% of applied N is typically lost through volatilization. (louisianacrops.com)
Compound NPK Fertilizer2
- NPK, Compound NPK Fertilizer, NPK Fertilizer Granular manufacturer / supplier in China, offering NPK Fertilizer, Amino Acid Fertilizer, Humic Acid Fertilizers and so on. (made-in-china.com)
- Granular compound NPK fertilizer is easy to use, use as basal fertilizer and topdressing fertilizer. (eda-advies.nl)
- Nitrogen given to plants in the forms organic manure and artificial fertilisers. (eco-web.com)
- Only use manure that has been aged, composted, or broken down into a safer and more usable fertilizer. (wikihow.com)
- Organic humus like compost peat moss and processed manure are excellent additions to the new It is very important to apply a spring type lawn fertilizer then follow with a summer lawn fertilizer. (upcaring.eu)
- Generally speaking, however, the best practice will be found to consist in relying upon the overturned sod and stable manure, with lime where needed to grow the maize and applying the commercial fertilizers to the wheat both to increase the yield of the latter and to promote the new seeding. (google.com.mx)
- Barnyard manure (mixed horse and cow) 12 tons , 14.32 Fertilizers applied each year from 1888 to 1898 or 1899. (google.com.mx)
- NUE of mixed crop-animal systems may range from 5% to 65% depending on NUE at the animal level, and the utilisation of manure nitrogen and new nitrogen inputs. (wur.nl)
- Manure Fertilizer Tea. (floodresiliencity.eu)
- Management practices to reduce the risk of contamination from applied fertilizers and manure help keep the water supply safe. (lyrikwelt.eu)
- At transplant time and again when the fruits are beginning to set fertilize with fishmeal chicken manure or a premixed low-nitrogen high-phosphorus organic fertilizer formulated for tomatoes. (lyrikwelt.eu)
- Nitrogen increases the area of the leaf, while potassium increases its efficiency. (eco-web.com)
- Using best management practices can substantially improve fertilizer efficiency, crop yields and profitability - especially since input and commodity prices are high. (mississippi-crops.com)
- 291. Influence of Season on Efficiency of Fertilizers. (google.com.mx)
- Nitrogen and P use efficiency (NUE and PUE respectively) at the animal level is in the range 5-45%, depending on animal category, feeding and management. (wur.nl)
- Plants get the nitrogen they need when they need it most - and you get improved nitrogen efficiency. (floodresiliencity.eu)
- Humic acid appears black and uniform granule, have good water solubility, could be a good replacement of normal NPK fertilizer. (incomplete-men.com)
- Keywords: Cultivars, humic acid, amino acids and nitrogen fertilizer. (incomplete-men.com)
- How do I extract humic acid from liquid fertilizer? (incomplete-men.com)
- Biofertilizer is the biologically active products or microbial inoculants of bacteria, algae and fungi, which may help biological nitrogen fixation for the benefit of plants. (preservearticles.com)
- Iron is a component of many enzymes associated with energy transfer, nitrogen reduction and fixation, and lignin formation. (napnutriscience.com)
- Molybdenum (Mo) is vital for the process of symbiotic nitrogen (N) fixation by Rhizobia bacteria in legume root modules. (napnutriscience.com)
- Description: Ideal preplant formulation with high levels of nitrogen for a rapid growth response and phosphorus for early root development. (marionag.com)
- If you want to boost flower production, a formulation such as 12-55-6 will contain a higher amount of phosphorus, which promotes more blooms. (gardendesign.com)
- There are many different types of fertiliser available on the market and to the new gardener selecting the right formulation for the garden can be overwhelming. (articlecity.com)
- They are available to buy as a granular or liquid formulation. (articlecity.com)
- The concentrated phosphorus fertilizers can be diluted with water of pH ranging from about 6.5 to about 8.5 at ratios of concentrate to water at about 1:40 to about 1:600 to result in a fertilizer having a pH in the range acceptable for foliar uptake of phosphorus. (google.com)
- The added nitrogen provides efficient potassium uptake. (tanthanhson.com)
- N/a.), because rapid wheat nitrogen uptake does not occur until wheat stem elongation begins. (mississippi-crops.com)
Apply a granular2
Comes in granular1
- This type of phosphate fertilizer is then mixed with water by the end user for application. (wisegeek.com)
- Proper training and education are requirements for field workers handling, loading, and operating fertilizer application equipment. (ufl.edu)
- Minimal PPE for fertilizer loading or application are long sleeved shirt, long legged pants, boots, gloves, dust mask and eye protection. (ufl.edu)
- Catch up on the conversation about fertilization strategies for success with the experts at Koch Turf & Ornamental in the Fertilizer Application forum . (lawnsite.com)
- Discussion in ' Fertilizer Application ' started by steve grubbs , Sep 7, 2011 . (lawnsite.com)
- Additionally, the amount of surface residue and time between urea application and precipitation are also critical. (wikipedia.org)
- Horticulturist and owner of Variegata Studio , Denise Kelly, says, "It's helpful to remember that fertilizers are more akin to vitamins than food, especially when deciphering application rate and frequency. (gardendesign.com)
- Most plants benefit from the application of a slow-acting granular fertilizer in early spring to jump-start new growth. (gardendesign.com)
- In grassland situations, it increases the amount of clover and autumn application of K will help to minimise problems with grass tetany in cows. (nitrofert.ie)
- Thus, delaying nitrogen application may only reduce wheat yield potential by depriving plants of nutritional needs. (mississippi-crops.com)
- Split application of nitrogen fertilizer is likely more important for wheat than any other crop, including corn. (mississippi-crops.com)
- Likewise, nitrogen application timing can be very important, particularly for the first spring application. (mississippi-crops.com)
- Split Application Guide - I believe the most prudent method to apply nitrogen to southern wheat is either a 2-way or a 3-way split with at least 2/3 of the nitrogen applied in the late split(s). (mississippi-crops.com)
- Only a small amount of the total N is theoretically needed in the first topdress application (20-30 lbs. (mississippi-crops.com)
- A second nitrogen application should occur when plants become strongly erect and stem elongation begins, and again prior to boot stage, if you choose to make a third application. (mississippi-crops.com)
- The application of fertilizer to fruit trees is essential for maintaining adequate tree growth and good fruit production but excessive fertilization could result in shading and poor spray coverage resulting from Let's talk apple orchards and apple tree fertilizer especially for nitrogen We make it simple to figure out the right fertilizer to use for your lawn. (upcaring.eu)
- How long after the fertilizer application did the flooding conditions occur? (louisianacrops.com)
- The granular urea will be converted into the ammonium form after application through a process called hydrolysis. (louisianacrops.com)
- High application rates of nitrogen-containing fertilizers combined with the high water-solubility of nitrate leads to increased runoff into surface water as well as leaching into groundwater, thereby causing groundwater pollution. (wikipedia.org)
- Growing tomatoes on the West Coast is a challenge if we get a cool wet spring, like last year, gardeners will need to use all the tips and tricks available to ensure they get to harvest Urea Fertilizer Application Rate Nz Spreader Deflector natureвЂ™s Green Organics is proud to offer Canadians the very best lawn care solutions for the home and business. (milkconceptstore.com)
- The liquid fertiliser applications were applied in water at a 150 litre per ha application rate using standard boom spraying equipment. (milkconceptstore.com)
- Urea Fertilizer Application Rate Nz Spreader Deflector natureвЂ™s Green Organics is proud to offer Canadians the very best lawn care solutions for the home and business. (milkconceptstore.com)
- Thinking of applying another nitrogen application? (hayandforage.com)
- To avoid such incidents, workers should be prohibited from eating, drinking, or smoking during application of fertilizer. (progressivegardening.com)
- The composition of organic fertilizers is often variable, making it difficult to accurately assess application rates. (thecanadianencyclopedia.ca)
- Repeat the MiracleGro application monthly until early fall or apply slow release granular fertilizer a couple weeks after planting. (floodresiliencity.eu)
Liquid or granular1
- An all-purpose formula consisting of slow-release nitrogen and phosphorus. (marionag.com)
- Description: 20-0-10 with potassium sulfate contains almost 75% slow release nitrogen from a combination of Duration 90 and 180 day. (marionag.com)
- Maintenance rate balanced fertilizer (25% slow release nitrogen). (baileystreeandlandscape.com)
- Medium rate balanced fertilizer (40% slow release nitrogen). (baileystreeandlandscape.com)
- Our best fertilizer, formulated with slow release nitrogen and a generous amount of iron to keep your lawn in showcase condition all summer. (ifa-coop.com)
- What is Phosphate Fertilizer? (wisegeek.com)
- Phosphate fertilizer is a fertilizer that is high in phosphorous. (wisegeek.com)
- Most phosphate fertilizer comes from phosphate rock, a mineral mined in massive quantities of millions of tons from locations around the world. (wisegeek.com)
- Rock phosphate fertilizers are becoming less common, as the raw rock provides relatively little phosphorous for its weight and transportation costs make it more expensive than refined phosphate fertilizer. (wisegeek.com)
- For example, mono-ammonium phosphate fertilizer may have a cadmium content of as low as 0.14 mg/kg or as high as 50.9 mg/kg. (wikipedia.org)
- All guano phosphate fertilizer wholesalers & guano phosphate fertilizer manufacturers come from members. (chinaqualitycrafts.com)
- We doesn't provide guano phosphate fertilizer products or service, please contact them directly and verify their companies info carefully. (chinaqualitycrafts.com)
- Seabird guano organic fertilizer and guano phosphate fertilizer Specification: Item Abbreviation Unit Specification A Specification B Total P2O5 P2O5 % 20~25 25~30 Total Phosphate P % 6~11 8~14 Total Nitrogen N % 0.11 Total Potassium K % 0.25 Total Sulphur. (chinaqualitycrafts.com)
- It's important to use a complete fertiliser, which contains nitrogen (N), phosphorus (P) and potassium (K)," says Bunnings garden care buyer Matt Wagner-Smith. (bunnings.com.au)
- You can also buy boxes of bat guano, which contains nitrogen, phosphorus, and potassium, at many nursery and farm supply stores. (wikihow.com)
- All fertilizers use this standard concentration rating system to show the percentage of each fertilizer element as part of the total blend. (sprinklerwarehouse.com)
- A blend is made by mixing together two or more fertilizer materials. (rainbowplantfoodproducts.com)
- OMRI listed for organic gardening Black Gold Tomato & Vegetable will make any edible garden thrive with its carefully formulated blend of natural fertilizers. (floodresiliencity.eu)
- If you absolutely must use them then you need to use chemical fertilizers pesticides fungicides and herbicides with care. (upcaring.eu)
- They have a suitable content of nitrogen and potassium, but are much lower in phosphorus than traditional animal manures and the typical N:P:K ratios in chemical fertilizers. (fao.org)
Pound of Nitrogen per 1,0002
- Most studies, indicate that nitrogen losses can be reduced in these situations when a urease inhibitor is applied to the fertilizer. (wikipedia.org)
- Another thing we have to consider is whether or not a urease inhibitor or a nitrification inhibitor was applied on the granular fertilizer or mixed in with the liquid N fertilizer. (louisianacrops.com)
Form of nitrogen2
Levels of nitrogen1
- Use our brand new Lawn Fertilizer Calculator ! (lawnphix.com)
- John from shares with you how he handles caging and training some plants that were not originally caged staked or trellised when Natural Organic Lawn Fertilizer. (upcaring.eu)
- What are some advantages of using urea as a lawn fertilizer? (reference.com)
- There are two types of lawn fertilizer: liquid and granular. (ifa-coop.com)
- Ingestion of insecticides and pesticides, especially those that contain organophosphates (e.g., disulfoton, often found in rose-care products), can be life-threatening to dogs, even when ingested in small amounts. (luvmydogs.com)
- It can be injurious if high percentages are present, but small amounts may be beneficial under some conditions. (marconews.com)
- Because it is required in small amounts, it is important that B is delivered as evenly as possible across the field. (cornandsoybeandigest.com)
- Although Zinc is required only in small amounts, high yields are impossible without it. (napnutriscience.com)
- It is required in very small amounts, with the critical level appearing to be about 0.1 ppm. (napnutriscience.com)
- Although it is nearly identical to natural gypsum, it may contain small amounts of sand, phosphate, fluorine, radium, and other elements present in phosphate ore. (progressivegardening.com)
- To green up your lawn, a fertilizer with a ratio such as 29-0-4 contains a higher concentration of nitrogen, which boosts lush foliar growth. (gardendesign.com)
- Recovery of fertilizer N ranged from 42% to 63% for the broadcast granular applications and 15% to 52% for the foliar FN applications, depending on rate and timing. (ashs.org)
- Fertilizer N from spring applications (granular or foliar) was predominantly partitioned to leaves and reproductive tissues. (ashs.org)
- The brown coal and biochar based fertilizers had a positive influence on a spring wheat yield. (springer.com)
- Either yield will be reduced or additional costs will be incurred from additional nitrogen fertilizer. (wikipedia.org)
- If a field shows poor tiller development or signs of nitrogen deficiency, you need to apply enough nitrogen to meet its demand or the crop will suffer yield loss. (mississippi-crops.com)
- mercial fertilizer causing a decrease in yield. (google.com.mx)
- Pioneer offers the EncircaSM Yield Nitrogen Management Service for growers. (hayandforage.com)
- Urea, when properly applied, results in crop yield increases equal to other forms of nitrogen. (qianyida.com)
- Rate and timing of nitrogen applications strongly influence cotton yield. (ncdcr.gov)
- Low nitrogen reduces yield. (ncdcr.gov)
- and the least returns during a season of low rainfall, the commercial fertilizer causing a decrease in yield. (google.com.mx)