"Cropping Patterns/ Water Management S Effects of Long-term "Rice-Fallow-Rice" and "Rice-Pulses-Rice" on Rice yield and soil properties (2001 - 2010): Black gram fixed 18-73kg N2/ha; 9- 23% yield increase S Effects Of Crop Residues on "Rice-Fallow-Rice" cropping system: Early tillage and Late tillage (without straw, with straw, with straw burn): Treatment of incorporating rice straw soon after rice harvest gave the best yield S Effects of Water Management systems on rice yields / Drought screening methods: Continuous flooding, Alternate Wet and Dry, Irrigation 2-week intervals ; Irrigation at 2 wk intervalreduced water requirement 26-39% less than the AWD, not yield affected..."