In the present investigation, impact of different tillage options on wheat yield has been evaluated for various locations of IGP region. In general, more increase in wheat yield was observed was observed in zero tillage when compared with conventional tillage.

some winter crops (wheat, mustard, barley and chickpea) in northwest India was evaluated on the basis of historic records and through a dynamic crop growth model, WTGROWS. The optimal date of sowing was also evaluated in view of the increase in seasonal temperature. The yield of these crops, especially wheat, already showing signs of stagnation in most places of northwest India, is most likely to be affected by temperature