Application edit Fertilizers are commonly used for growing all crops, with application rates depending on the studio devil vba pro keygen soil fertility, usually as measured by a soil test and according to the particular crop.
Ceresana, Market Study Fertilizers - World, May 2013, "Market Study Fertilizers - Europe".Lugon-Moulin,.; Ryan,.; Donini,.; Rossi,.Organic fertilizers are usually (recycled) plant- or animal-derived matter.In the 1960s, the Tennessee Valley Authority National Fertilizer Development Center began developing sulfur-coated urea; sulfur was used as the principal coating material because of its low cost and its value as a secondary nutrient.Saltzman,.; Birol,.; Bouis,.Accessed Vance, Carroll P; Uhde-Stone Allan (2003).They are classified according to whether they provide a single nutrient (e.g., K, P, or N in which case they are classified as "straight fertilizers." "Multinutrient fertilizers" (or "complex fertilizers provide two or more nutrients, for example N and.Deposits of sodium nitrate (NaNO3) ( Chilean saltpeter ) are also found in the Atacama desert in Chile and was one of the original (1830) nitrogen-rich fertilizers used.Phosphate is required for the production of DNA and ATP, the main energy carrier in cells, as well as certain lipids.Reviews of Environmental Contamination and Toxicology.49 Limits to the cadmium content of phosphate fertilizers has been considered by the European Commission.Population from Consumer Products and Miscellaneous Sources.43 For example, mono-ammonium phosphate fertilizer may have a cadmium content of as low.14 mg/kg or as high.9 mg/kg.Science of Total Environment.Commercial fertilizers increase crop yields.Liquid fertilizers comprise anhydrous ammonia, aqueous solutions of ammonia, aqueous solutions of ammonium nitrate or urea.Retrieved b Loganathan,.; Hedley,.J.; Grace,.D.In fact potash fertilizers are usually potassium chloride, potassium sulfate, potassium carbonate, or potassium nitrate.
"Summary of State Fertilizer Laws" (PDF).
A maize crop yielding 69 tonnes of grain per hectare (2.5 acres) requires 3150 kilograms (68110 lb) of phosphate fertilizer to be applied; soybean crops require about half, as 2025 kg per hectare.