Short term effect of tillage, residue and biofertilizer on some physicochemical soil attributes under Teraiagro-ecological zone of West Bengal, India

Improvement of physicochemical status soil always should be major concern before adopting any practices. In the present investigation, we assessed tillage, crop residue and biofertilizer on some properties soil.Results revealed that pH bulk density both observed to get higher in their level proportionally with depths. Residue biofertilizers application significantly (p less than 0.05) improved organic carbon contentirrespective tillage practice.Higher available nitrogen content zero-tillage (ZT) conventional (CT)at surface layer (0-5 cm). ZT recorded highest phosphorus (P) at 0-5 cm depth. increased P 0-10 layer; however,biofertilizer involving PSB had better effect CT ZT. K availability plough but found restricted top layer.