fertilizer
A fertilizer is any substance that is added to soil or water to assist the growth of plants.
herbicide safener
A compound used with herbicides that reduces the effect of the herbicide on crop plants or otherwise improves the selectivity of the herbicide for weed species over the crop plant.
bleaching agent
A reagent that lightens or whitens a substrate through chemical reaction. Bleaching reactions usually involve oxidative or reductive processes that degrade colour systems. Bleaching can occur by destroying one or more of the double bonds in the conjugated chain, by cleaving the conjugated chain, or by oxidation of one of the other moieties in the conjugated chain. Their reactivity results in many bleaches having strong bactericidal, disinfecting, and sterilising properties.
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