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  2. Nitrogen and Non-Protein Nitrogen's effects on Agriculture

    en.wikipedia.org/wiki/Nitrogen_and_Non-Protein...

    NPN can also be used to artificially raise crude protein values, which are measured based on nitrogen content, as protein is about 16% nitrogen and the only major component of most food that contains nitrogen is protein. The source of NPN is typically a chemical feed additive, or sometimes chicken waste, [7] [8] and cattle manure.

  3. Nutrient management - Wikipedia

    en.wikipedia.org/wiki/Nutrient_management

    Nitrogen fertilizer being applied to growing corn in a contoured, no-tilled field in Iowa.. Nutrient management is the science and practice directed to link soil, crop, weather, and hydrologic factors with cultural, irrigation, and soil and water conservation practices to achieve optimal nutrient use efficiency, crop yields, crop quality, and economic returns, while reducing off-site transport ...

  4. Reuse of human excreta - Wikipedia

    en.wikipedia.org/wiki/Reuse_of_human_excreta

    A sewage farm in Hampshire, England. The resources available in wastewater and human excreta include water, plant nutrients, organic matter and energy content. Sanitation systems that are designed for safe and effective recovery of resources can play an important role in a community's overall resource management.

  5. Agricultural wastewater treatment - Wikipedia

    en.wikipedia.org/wiki/Agricultural_wastewater...

    Farmers may use Integrated Pest Management (IPM) techniques (which can include biological pest control) to maintain control over pests, reduce reliance on chemical pesticides, and protect water quality. [10] [11] There are few safe ways of disposing of pesticide surpluses other than through containment in well managed landfills or by ...

  6. Digestate - Wikipedia

    en.wikipedia.org/wiki/Digestate

    Generally the ammonia content of the digestate accounts for approximately 60-80% of the total nitrogen content, but for a feedstock like kitchen food waste it can be as high as 99%. Digestate has also been reported to have a higher phosphorus and potassium concentration than that of composts. The average P to K ratio is about 1:3.

  7. Adapt-N - Wikipedia

    en.wikipedia.org/wiki/Adapt-n

    Adapt-N is a precision nitrogen management solution [buzzword] operated by Agronomic Technology Corp. It was developed at Cornell University.It examines soil, weather, crop, field management data to provide an always-on, field-specific nitrogen recommendation that has been shown to improve financial and environmental performance.

  8. Farmers told to slash nitrogen pollution flowing into Poole ...

    www.aol.com/farmers-told-slash-nitrogen...

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  9. Organic fertilizer - Wikipedia

    en.wikipedia.org/wiki/Organic_fertilizer

    Fertilizers are materials that can be added to soil or plants, in order to provide nutrients and sustain growth. Typical organic fertilizers include all animal waste including meat processing waste, manure, slurry, and guano; plus plant based fertilizers such as compost; and biosolids. [2] Inorganic "organic fertilizers" include minerals and ash.