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Agricultural chemistry
(749 words)

Since Antiquity, organic and mineral manuring has been used to improve crop yield. In the 17th century, Paracelsism gave the initial stimulus to a chemical investigation of surface soil and plant constituents. But chemical fertilization, in the form suggested during the English Revolution by the reformist circle of Samuel Hartlib [6. 384–402] or by the chemist Johann Rudolf Glauber, remained ineffective, because key questions of plant nutrition remained unanswered. While some, following Johann Baptist van Helmont (1577-1644), saw the supposed…

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Meinel, Christoph, “Agricultural chemistry”, in: Encyclopedia of Early Modern History Online, Editors of the English edition: Graeme Dunphy, Andrew Gow. Original German Edition: Enzyklopädie der Neuzeit. Im Auftrag des Kulturwissenschaftlichen Instituts (Essen) und in Verbindung mit den Fachherausgebern herausgegeben von Friedrich Jaeger. Copyright © J.B. Metzlersche Verlagsbuchhandlung und Carl Ernst Poeschel Verlag GmbH 2005–2012. Consulted online on 21 March 2019 <http://dx.doi.org/10.1163/2352-0272_emho_SIM_016659>
First published online: 2015
First print edition: 20160321

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