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Ŝanĝoj

1 bitokon aldonis ,  antaŭ 3 jaroj
The scientific investigation of fertilization began at the [[Rothamsted Experimental Station]] in 1843 by [[John Bennet Lawes]]. He investigated the impact of inorganic and organic fertilizers on crop yield and founded one of the first artificial fertilizer manufacturing factories in 1842. Fertilizer, in the shape of [[sodium nitrate]] deposits in [[Chile]], was imported to Britain by [[John Thomas North]] as well as [[guano]] (birds droppings). The first commercial process for fertilizer production was the obtaining of ''[[super phosphate|phosphate]]'' from the dissolution of [[coprolite]]s in [[sulphuric acid]].<ref name="pdmhs.com">Coprolite Fertilizer Industry in Britain [http://www.pdmhs.com/PDFs/ScannedBulletinArticles/Bulletin%2014-5%20-%20The%20Origins%20and%20Development%20of%20the%20British%20.pdf] Accessed 3 April 2012</ref>
 
== LaborantaroLaboristaro ==
 
== Agrikulturaj produktadsistemoj ==
[[File:Baumwoll-Erntemaschine auf Feld.jpeg|thumb|dekstre|[[Kotonplukilo]] labore. La unuaj sukcesaj modeloj estis prezentitaj en la mezo de [[1940-aj jaroj]] kaj ĉiu povis fari la laboron de 50 manplukistoj. Jen ekzemplo de [[mekanizita agrikulturo]].]]
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