Why should we shift to zero tillage system? What are its advantages over the conventional systems of planting wheat and other upland crops?
Sowing of wheat after rice requires 6-8 passes of the tractor with disc harrow and cultivator followed by 2-3 planking. This increases the cost of production, delays planting, and also results in loss of residual soil moisture after harvest of rice which could be used with advantage for establishment of a wheat crop. Conventional tilled fields have higher weed population. Thus the challenge of producing more at reduced costs can be handled successfully with zero tillage system. Zero tillage saves time in planting, save fuel, water, improves efficiency of phosphatic fertilizers, and weakens density of Phalaris minor, reduces the wear and tear of tractor, promotes residue management and helps reduce air pollution. It is observed that zero-till increases farmer profit by INR 2500-3500/ha ( US$55-75) .
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