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en.wikipedia.org/wiki/Fertilizer

A fertilizer (American English) or fertiliser is any material of natural or synthetic origin (other .... Nitrogen fertilizers are made from ammonia (NH3), which is sometimes injected into the ground directly. The ammonia is produced by the ...

en.wikipedia.org/wiki/History_of_fertilizer

The history of fertilizer has largely shaped political, economic, and social circumstances in their .... The resultant nitric acid was then used for the production of synthetic fertilizer. A factory based on the process was built in Rjukan and Notodden ...

www.madehow.com/Volume-3/Fertilizer.html

First used by ancient farmers, fertilizer technology developed significantly as the chemical needs of growing plants were discovered. Modern synthetic fertilizers ...

www.enviroingenuity.com/articles/synthetic-vs-organic-fertilizers.html

Synthetic Fertilizers are “Man made” inorganic compounds - usually derived from by-products of the petroleum industry. Examples are Ammonium Nitrate, ...

homeguides.sfgate.com/effects-synthetic-fertilizers-45466.html

Agriculture has relied on the use of natural fertilizers -- substances that increase the nutrient levels of soil -- for most of human history. Synthetic fertilizers made ...

encyclopedia2.thefreedictionary.com/Artificial+fertiliser

Find out information about Artificial fertiliser. organic or inorganic material ... a mineral fertilizer industry, during the years of the first five-year plan made it ...

extension.oregonstate.edu/gardening/node/955

Apr 30, 2008 ... Inorganic fertilizers such as ammonium sulfate or ammonium phosphate are often called commercial or synthetic fertilizers, because they go ...

www.bbc.co.uk/schools/gcsebitesize/science/add_gateway_pre_2011/chemical/fertilisersrev1.shtml

Fertilisers contain minerals such as nitrogen, potassium and phosphorus, which ... Most chemical fertilisers are made by the reaction of an acid with an alkali.

www.growjourney.com/5-facts-synthetic-nitrogen-fertilizer

Aug 10, 2016 ... Today, the “synthetic nitrogen” fertilizer made from the “Haber-Bosch” process is a key component of industrial/conventional farming. As a result ...