Conservation tillage - an eco friendly management practices for agriculture.

Abstract

Conservation tillage decreases so il erosion almost in direct p roportion to the amount o f so il cover a nd it reduces so il losses b ut d oes n ot a lways re duce the volume of run off as e ffectively as it reduces se diment l osses. Conservation tillage reduces le aching of f ertilizer, p esticides a nd herbicides into the ground water. Conservation tillage greatly affect bulk density and soil aggregation. It improves activity of earth worm and other soil micro flora. Numerous studies conducted in temperate climate zones showed that no-tillage resulted in acidification of surface layer when continued for several years. Conservation tillage increases soil infiltration r ate and reduces soil evaporation t here by it increases soil water storage. Due to higher residue in surface soil it will improve soil organic carbon content, it gives smothering effect to weeds and by i t increase yi eld of crops.