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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 ...

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 ...

garden.lovetoknow.com/wiki/What_is_Fertilizer_Made_Of

As a gardener it's important to know what is fertilizer made of and how it affects your plants. Fertilizers may be made from organic materials or from chemicals.

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 ...

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 ...

www.essentialchemicalindustry.org/materials-and-applications/fertilizers.html

All nitrogen-containing fertilizers are made via ammonia and over 150 million ... no 'artificial' fertilizers should be used and those who believe that manufactured ...

www.bbc.co.uk/bitesize/standard/chemistry/plasticsandothermaterials/fertilisers/revision/2

Add synthetic (man-made) or natural (manure) fertilisers ... A fertiliser is a soluble compound containing nitrogen, phosphorous or potassium. Use your data ...