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2. Fertilizer - Wikipedia

   en.wikipedia.org/wiki/Fertilizer

   Nitrogen fertilizers are made from ammonia (NH 3) produced by the Haber–Bosch process. [28] In this energy-intensive process, natural gas (CH 4) usually supplies the hydrogen, and the nitrogen (N 2) is derived from the air. This ammonia is used as a feedstock for all other nitrogen fertilizers, such as anhydrous ammonium nitrate (NH 4 NO 3 ...

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

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

   When discussing the application of nitrogen in agriculture, it is essential to consider the sources of nitrogen used. Synthetic nitrogen fertilizers, such as ammonium nitrate and urea, are commonly applied to crops to replenish soil nitrogen levels and enhance crop productivity [3] These fertilizers provide readily available nitrogen for plant ...

4. 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 ...

5. CULTAN Fertilization - Wikipedia

   en.wikipedia.org/wiki/CULTAN_Fertilization

   Although CULTAN fertilization is only done for nitrogen application, injection irrigation can also be used for other types of fertilizers. The most common way to inject fertilizer into the ground, regardless of chemical type, is through the drip method. The drip method involves an irrigation pump and a chemical injection pump.

6. UAN - Wikipedia

   en.wikipedia.org/wiki/UAN

   The combination of urea and ammonium nitrate has an extremely low critical relative humidity (18% at 30 °C) and can therefore only be used in liquid fertilizers. The most commonly used grade of these fertilizer solutions is UAN 32.0.0 (32%N) known as UN32 or UN-32, which consists of 45% ammonium nitrate , 35% urea and only 20% water.

7. Liquid nitrogen mishap kills 750,000 fish in rivers in Iowa ...

   www.aol.com/liquid-nitrogen-mishap-kills-750...

   Over 265,000 gallons of the fertilizer flowed out of the storage tank due to human error, ... Liquid nitrogen mishap kills 750,000 fish in rivers in Iowa and Missouri, officials say.