CHENNAI: Indiscriminate fertilizer and pesticide usage, coupled with mono-cropping and non-application of base manure like cow dung and green manure (dead plants), has taken a severe toll on the organic content in soil and thereby soil fertility across the state, says the draft organic farming policy of the state government, which is yet to be rolled out. The issue has come into focus now in the wake of Kerala raising concerns of high pesticide level on vegetables grown in Tamil Nadu. Experts in the field say organic matter in the soil dropped from 1.2% in 1971...
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