Relative Composition of Weeds and Wheat Yield as Influenced by Different Weed Control and Tillage Practices

Tillage practices and weed control treatments had marked effect on weeds density and total weed dry matter production in wheat. The lowest density of Phalaris minor, Cynodon dactylon. Cyperus rotundus, Anagallis arvensis and Chenopodium album was recorded in zero tillage. The maximum density of weed species was observed in conventional tillage. Weed dry matter production was significantly less in zero tillage and more in conventional tillage. Sulfosulfuron at 33.3 g ha−1 had minimum density of all the major weeds and dry matter production by weeds. Conventional tillage recorded maximum number of carheads m−2. grains pcr carhead, test weight and grain yield, whieh were minimum in zero tillage treatmcnt. Sulfosulfuron recorded maximum values of all the yield attributes and gave highest grain yield.