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An agrochemical or agrichemical, a contraction of agricultural chemical, is a chemical product used in industrial agriculture. Agrichemical typically refers to biocides ( pesticides including insecticides , herbicides , fungicides and nematicides ) alongside synthetic fertilizers .
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2,4-D, an early synthetic herbicide inspired by the study of auxins, had a profound impact on crop yields, starting in the 1940s.. Agricultural chemistry is the chemistry, especially organic chemistry and biochemistry, as they relate to agriculture.
The word pesticide derives from the Latin pestis (plague) and caedere (kill). [5]The Food and Agriculture Organization (FAO) has defined pesticide as: . any substance or mixture of substances intended for preventing, destroying, or controlling any pest, including vectors of human or animal disease, unwanted species of plants or animals, causing harm during or otherwise interfering with the ...
Agrochemicals typically have a lower number of hydrogen bond donors. [4] For example, over 70% of insecticides have no hydrogen bond donor, and over 90% of herbicides have two or fewer. Desirable agrochemicals have residual activity and persistence of effect lasting up to several weeks to allow large spray intervals.
The biological activity of a pesticide, be it chemical or biological in nature, is determined by its active ingredient (AI - also called the active substance). Pesticide products very rarely consist of the pure active ingredient.
Shqip; සිංහල ... the 19th century, after innovations in plant nutrition, an agricultural industry developed around synthetically created agrochemical ...
This page was last edited on 10 January 2024, at 16:30 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.