Time is the most important thing which reduces wheat yield in conventional rice -wheat cropping system, conservation agriculture might be a chance to resolve these conflict in Indo -Gangetic Plains. In this one - year field study; Wheat was raised in zero till age and conventional tillage systems after harvesting rice grown in flooded systems. Wheat seed was hydro -primed and no -primed. To optimize herbicide dose sulfusulfuron at different doses was applied i.e. recommended dose, 75%, 50% and 25% of recommended dose. The main effects and interactions of the factors were studied. Eight types of weeds were observed throughout the experiment swine cress ( Cronopus didymus L.), toothed dock ( Rumex dentatus L.), sweet clover ( Melilotus indica L.), pimpernel ( Anagalis arvensis L.), Lambsquarter (Chenopodium album L.), field bindweed ( Convulvus arvensis L.), Avena fatua L., Phalaris minor Retz. And burclover ( Medicago polymorpha L.). Amongst the tillage systems in conventional tillage stand establishment, morphological a nd yield traits were better as compared to zero tillage. Similarly hydro - primed treatment performed better as compared to non -primed showing more number of plants in final emergence count. Herbicide ’s reduced doses did not performed better as compared to r ecommended. More weeds were observed in zero tillage as compared to control but less in hydro -primed as compared to no -primed. Conventional tillage with hydroprimed seed under recommended dose of sulfusulfuron performed best and gave maximum grain yield (4.72 tha-1) and biological yield (11.70 t ha-1).
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