bone is used as a fertilizer because it contains the plant nutrient phosphorus.
bone is used as a fertilizer because it contains the plant nutrient phosphorus.
bone is used as a fertilizer because it contains the plant nutrient?
phosphorus
a biofertilizer (also bio-fertilizer) is a substance which contains living microorganisms which, when applied to seeds, plant surfaces, or soil, colonize the rhizosphere or the interior of the plant and promotes growth by increasing the supply or availability of primary nutrients to the host plant. biofertilizers add nutrients through the natural processes of nitrogen fixation, solubilizing phosphorus, and stimulating plant growth through the synthesis of growth-promoting substances. biofertilizers can be expected to reduce the use of synthetic fertilizers and pesticides. the microorganisms in biofertilizers restore the soil's natural nutrient cycle and build soil organic matter. through the use of biofertilizers, healthy plants can be grown, while enhancing the sustainability and the health of the soil. since they play several roles, a preferred scientific term for such beneficial bacteria is "plant-growth promoting rhizobacteria" (pgpr). therefore, they are extremely advantageous in enriching soil fertility and fulfilling plant nutrient requirements by supplying the organic nutrients through microorganism and their byproducts. hence, biofertilizers do not contain any chemicals which are harmful to the living soil.
biofertilizer
bullet::::- slow- or controlled-release fertilizer: a fertilizer containing a plant nutrient in a form which delays its availability for plant uptake and use after application, or which extends its availability to the plant significantly longer than a reference ‘rapidly available nutrient fertilizer’ such as ammonium nitrate or urea, ammonium phosphate or potassium chloride. such delay of initial availability or extended time of continued availability may occur by a variety of mechanisms. these include controlled water solubility of the material by semi-permeable coatings, occlusion, protein materials, or other chemical forms, by slow hydrolysis of water-soluble low molecular weight compounds, or by other unknown means.
controlled-release fertiliser