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2. Manure - Wikipedia

   en.wikipedia.org/wiki/Manure

   For instance, sheep manure is high in nitrogen and potash, while pig manure is relatively low in both. Horses mainly eat grass and a few weeds, so horse manure can contain grass and weed seeds, as horses do not digest seeds as cattle do. Cattle manure is a good source of nitrogen as well as organic carbon. [3]

3. 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.

4. Liquid manure - Wikipedia

   en.wikipedia.org/wiki/Liquid_manure

   Liquid manure is a mixture of animal waste and organic matter used as an agricultural fertilizer, sometimes thinned with water. It can be aged in a slurry pit to concentrate it. Liquid manure was developed in the 20th-century [ 1 ] as an alternative to fermented manure.

5. Animal-free agriculture - Wikipedia

   en.wikipedia.org/wiki/Animal-free_agriculture

   Livestock in the United States produce 230,000 pounds of manure per second, and nitrogen from these wastes is converted into ammonia and nitrates which leach into ground and surface water causing contamination of wells, rivers and streams. Mature compost of plant-based origins, used in animal-free agriculture, can reduce leaching of nitrate ...

6. Organic fertilizer - Wikipedia

   en.wikipedia.org/wiki/Organic_fertilizer

   Manure is an abundant resource with estimations for cattle manure in the US alone reaching two billion tons annually, [9] and one hen has the potential to produce a cubic foot of manure every six months. [10] By adding manure to crops it adds nitrogen, potassium, phosphorus, sulfur, magnesium and calcium. [11]

7. Manure management - Wikipedia

   en.wikipedia.org/wiki/Manure_management

   Animal manure (also referred to as animal waste) can occur in a liquid, slurry, or solid form. It is utilized by distribution on fields in amounts that enrich soils without causing water pollution or unacceptably high levels of nutrient enrichment. Manure management is a component of nutrient management.