Monitoring of the harmful concentrations of 2,4-dichlorophenoxyacetic acid(2,4-d) in soils with and without organic matter

Agrochemicals have been used to eliminate different undesirable forms of li fe both in agriculture and in urban areas. The rural exodus and the increas e of labor costs in the agricultural areas have induced a greater use of he rbicides in crops, mainly of 2,4-D. Through adsorption-desorption processes the mobility of this herbicide can be evaluated. The effect of organic mat ter on sorption of 2,4-D in soil has been studied. Organic matter contribut ed to the increase of 2,4-D adsorption. The ideal concentrations of 2,4-D i n yellow-red Latosol soils were determined based on adsorption-desorption e xperiments.