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| Home > Agriculture > Agrochemicals & Pesticides > Herbicides |
| Herbicides, Agrochemicals
& Pesticides, have largely replaced mechanical methods
of weed control in countries where intensive and highly mechanized
agriculture is practiced. Herbicides provide a more effective and
economical means of weed control than cultivation, hoeing, and
hand pulling. Together with fertilizers, other pesticides, and
improved plant varieties, they have made an important contibution
to the increased yields we now have and serve to combat rising
costs and shortages of agricultural labor. Without the use of
herbicides, it would have been impossible to mechanize fully the
production of cotton, soybeans, sugar beets, all grains, potatoes,
and corn. Herbicides are classed as selective when they are used to
kill weeds without harming the crop and as nonselective
when the purpose is to kill all vegetation. Both selective and
nonselective materials can be applied to weed foliage or to soil
containing weed seeds and seedlings, depending on the mode of
action. The term true selectivity refers to the capacity of
an herbicide, when applied at the proper dosage and time, to be
active only against certain species of plants but not against
others. But slectivity can also be achieved by placement, as when
a nonselective herbicide is applied in such a way that it reaches
the weeds. Early chemical herbicides were inorganic compounds. Herbicides such as ashes, common salts, and bittern have been used in agriculture since ancient times.Other inorganic herbicides include ammonium sulfamate, carbon bisulfide, sodium chlorate, sulfuric acid solutions, and formulations containing borate. Organic herbicides began to be produced in earnest with dinitrophenol compounds in 1932. in the 1940, 2,4-dichlorophenoxyacetic acid is a highly selective systemic herbicide when used in very small quantities. 2,4-D was quickly adopted to control broad-leaved weeds in corn, sorghum, small grains, and grass pastures, as well as in lawns and other ornamental turf. The phenoxyaliphatic acids and their derivatives, another major group of organic herbicides, succeeded because of their selectivity and ease of translocation. Other groups of organic herbicides include organic arsenicals, substituted amides and ureas, nitrogen heterocyclic acids, phenol derivatives, triazines, and sulfonylureas. |
 Herbicides:We produce the following products in large quantity: Clomazone 95%TC, 72%EC, 48%EC , Diquat 95%TC, 20%SL, 15%SL Fluazifop-p-butyl 90%TC, 15%EC , Fomesafen 95%TC, 25%SL Foramsulfuron 94%TC, 35%WDG, 2. 25%SC Haloxyfop-r-methyl 98%TC, 10. 8%EC , Imazamox 95%TC, 4%SL Linuron 95%TC, 50%WP , Nicosulfuron 95%TC, 4%SC Oxasulfuron 95%TC, 75%WDG , Prometryn 95%TC, 50%WP, 40%WP
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| Herbicides |