Effect of Pesticides on Rice Crop-Field-s Soil Microflora

Weed control management should include careful herbicide selection, use of active agent mixtures, alteration of herbicides with different mode of action, and adoption to the cultivated crop, selectivity and persistency. So, if the pesticides are applied at higher rates, they endanger to the safety of environment and the toxicological justification of application, which lead to a limitation of their use. In view of this, the present study has been undertaken to evaluate the dimensions of soil pollution by different herbicides in crop fields of Saran (Chapra), Bihar. Pesticides such as 2, 4-dicholorophenoxy-acetic acid (2, 4-D) led to an increase in microorganisms which degraded the herbicide; a phenomenon that could significantly affect microorganism community structure in soil.