Organic fertilizer

A cement reservoir containing cow manure mixed with water. This is common in rural Hainan Province, China. Note the bucket on a stick that the farmer uses to apply the mixture.
Liming soil
Bone meal and meat meal can be added to soil to stimulate root growth and to release phosphorus.

Organic fertilizers are fertilizers that are naturally produced.[1] 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. Organic refers to the Principles of Organic Agriculture, which determines whether a fertilizer can be used for commercial organic agriculture, not whether the fertilizer consists of organic compounds.

  1. ^ Christians, Nick E.; Patton, Aaron J.; Law, Quincy D. (2016-11-21). Fundamentals of Turfgrass Management, Fifth Edition. Hoboken, NJ, USA: John Wiley & Sons, Inc. doi:10.1002/9781119308867. ISBN 978-1-119-30886-7.
  2. ^ Cite error: The named reference Guertal-2012 was invoked but never defined (see the help page).