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  2. Phosphate rich organic manure - Wikipedia

    en.wikipedia.org/wiki/Phosphate_rich_organic_manure

    Phosphate rich organic manure is a type of fertilizer used as an alternative to diammonium phosphate and single super phosphate.. Phosphorus is required by all plants but is limited in soil, creating a problem in agriculture In many areas phosphorus must be added to soil for the extensive plant growth that is desired for crop production.

  3. Fertilizer - Wikipedia

    en.wikipedia.org/wiki/Fertilizer

    Phosphorus and nitrogen fertilizers can affect soil, surface water, and groundwater due to the dispersion of minerals [47] into waterways due to high rainfall, [65] [66] snowmelt and can leaching into groundwater over time. [67] Agricultural run-off is a major contributor to the eutrophication of freshwater bodies.

  4. Superphosphate - Wikipedia

    en.wikipedia.org/wiki/Superphosphate

    The phosphorus can be in the form of soluble inorganic phosphates or organic compounds containing phosphorus. In the living cell, energy is accumulated or expended using a complex range of biochemical processes which involve the transformation of adenosine triphosphate to adenosine diphosphate when energy is being expended and the reverse when ...

  5. Phosphorus deficiency - Wikipedia

    en.wikipedia.org/wiki/Phosphorus_deficiency

    Phosphorus deficiency is a plant disorder associated with insufficient supply of phosphorus. ... rock phosphate, manure, and phosphate-fertilizers. Introducing these ...

  6. Phosphorus - Wikipedia

    en.wikipedia.org/wiki/Phosphorus

    Heavy use of phosphorus fertilizers and their runoff have resulted in eutrophication (overenrichment) of aquatic ecosystems. [113] [114] Natural phosphorus-bearing compounds are mostly inaccessible to plants because of the low solubility and mobility in soil. [115] Most phosphorus is very stable in the soil minerals or organic matter of the soil.

  7. Labeling of fertilizer - Wikipedia

    en.wikipedia.org/wiki/Labeling_of_fertilizer

    Fertilizers are usually labeled with three numbers, as in 18-20-10, indicating the relative content of the primary macronutrients nitrogen (N), phosphorus (P), and potassium (K), respectively. More precisely, the first number ("N value") is the percentage of elemental nitrogen by weight in the fertilizer; that is, the mass fraction of nitrogen ...