Effects of Pesticides on Nitrogen Fixation

Abstract

EFFECT of various classes of pesticides on symbJO tic and non-symbiotic nitrogen fixation has been discussed. The information available indicates that these chemicals used at recommended levels may n()affect nitrogen fixation but repeated application caead to the build up of chlorinated hydrocarbonsbe toxic to the nitroge'1 fixing bacteria. Few studiealso indicate beneficial effect of pesticides on nodu· ation and yield of legumes