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2. Biofertilizer - Wikipedia

   en.wikipedia.org/wiki/Biofertilizer

   Biofertilizers offers an alternative solution for such agrochemicals, and show yield increase of up to about 10–40% by increasing protein contents, essential amino acids, and vitamins, and by nitrogen fixation. [20] Since a bio-fertilizer is technically living, it can symbiotically associate with plant roots. Involved microorganisms could ...

3. Birkeland–Eyde process - Wikipedia

   en.wikipedia.org/wiki/Birkeland–Eyde_process

   The Birkeland–Eyde process was one of the competing industrial processes in the beginning of nitrogen-based fertilizer production. It is a multi-step nitrogen fixation reaction that uses electrical arcs to react atmospheric nitrogen (N 2 ) with oxygen (O 2 ), ultimately producing nitric acid (HNO 3 ) with water. [ 1 ]

4. 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 ...

5. Nitrogen, phosphorus and potassium are the key garden ... - AOL

   www.aol.com/news/nitrogen-phosphorus-potassium...

   Organic sources can also be slow and unpredictable, so patience is critical.

6. Controlled-release fertiliser - Wikipedia

   en.wikipedia.org/wiki/Controlled-release_fertiliser

   Slow- or controlled-release fertilizer: A fertilizer containing a plant nutrient in a form which delays its availability for plant uptake and use after application, or which extends its availability to the plant significantly longer than a reference ‘rapidly available nutrient fertilizer’ such as ammonium nitrate or urea, ammonium phosphate ...

7. Milorganite - Wikipedia

   en.wikipedia.org/wiki/Milorganite

   "Milorganite" is a portmanteau of the term Milwaukee Organic Nitrogen. It was the winning entry in a 1925 naming contest for a biosolids-based fertilizer held in National Fertilizer Magazine. Its history began with Milwaukee's goal to clean up its rivers and Lake Michigan.