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2. Controlled-release fertiliser - Wikipedia

   en.wikipedia.org/wiki/Controlled-release_fertiliser

   Methylene diurea (MDU) is component of the most popular controlled-release fertilizers. [1] A controlled-release fertiliser (CRF) is a granulated fertiliser that releases nutrients gradually into the soil (i.e., with a controlled release period). [2] Controlled-release fertilizer is also known as controlled-availability fertilizer, delayed ...

3. Fertilizer - Wikipedia

   en.wikipedia.org/wiki/Fertilizer

   A fertilizer (American English) or fertiliser (British English) is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply plant nutrients. Fertilizers may be distinct from liming materials or other non-nutrient soil amendments. Many sources of fertilizer exist, both natural and industrially produced. [1]

4. Soil fertility - Wikipedia

   en.wikipedia.org/wiki/Soil_fertility

   Nitrogen and potassium are also needed in substantial amounts. For this reason these three elements are always identified on a commercial fertilizer analysis. For example, a 10-10-15 fertilizer has 10 percent nitrogen, 10 percent available phosphorus (P 2 O 5) and 15 percent water-soluble potassium (K 2 O). Sulfur is the fourth element that may ...

5. 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 ...

6. Coated urea - Wikipedia

   en.wikipedia.org/wiki/Coated_urea

   Coated urea fertilizers are a group of controlled release fertilizers consisting of prills of urea coated in less-soluble chemicals such as sulfur, polymers, other products or a combination. These fertilizers mitigate some of the negative aspects of urea fertilization, such as fertilizer burn. The coatings release the urea either when ...

7. Ammonia volatilization from urea - Wikipedia

   en.wikipedia.org/wiki/Ammonia_volatilization...

   Since urea is not an oxidizer at standard temperature and pressure, it is safer to handle and less of a security risk than other common nitrogen fertilizers, such as ammonium nitrate. However, if urea is applied to the soil surface, a meaningful fraction of applied fertilizer nitrogen may be lost to the atmosphere as ammonia gas; this only ...

8. Fertilisation - Wikipedia

   en.wikipedia.org/wiki/Fertilisation

   This is an accepted version of this page This is the latest accepted revision, reviewed on 4 February 2025. Union of opposite-sex gametes in sexual reproduction to form a zygote This article is about fertilisation in animals and plants. For fertilisation in humans specifically, see Human fertilization. For soil improvement, see Fertilizer. "Conceive" redirects here. For the health magazine ...

9. Abu Qir Fertilizers and Chemicals Industries Company

   en.wikipedia.org/wiki/ABU_QIR_Fertilizers_and...

   Abu Qir Fertilizers and Chemical Industries Co SAE (ABUK.CA) [3] is a former state-owned company that is one of the largest producers of nitrogen fertilizers in Egypt and the Middle East. [4] It produces about 50% of the Egyptian nitrogen fertilizers. [5] It owns three plants that produce liquid fertiliser, ammonia, urea, and ammonium nitrate. [2]