Impact of Establishment Techniques and Weed Management Strategies on Growth, Yield Attributes and Yield in Wet Direct-Seeded Winter Rice

Assam Rice Research Institute, Titabar, Assam during sali season of 2022 to study the effect of different establishment techniques and weed management practices on growth and yield parameters of wet direct seeded rice (DSR).The layout of the experiment was based on split plot design with three replications.Three establishment techniques and six different weed management practices were taken under consideration.All the growth parameters were recorded at an interval of 30,60,90 DAS and at harvest, respectively.Meanwhile, the yield attributes were recorded just before harvest of the crop.Results revealed that among various establishment techniques, drum seeding technique recorded the highest growth parameters viz., plant height (134.15cm), no. of tillers/ m 2 (310.89),dry matter accumulation/m 2 (877.59g/m 2 ) and leaf area index (3.12)along with highest grain (43.07q/ha) and straw yield (68.79q/ha).In respect to various weed management practices.pyrazosulfuronethyl @ 30g/ha at 2 DAS fb bispyribac-Na @ 25 g/ha at 25 and 45 DAS recorded the highest plant height (134.98 cm), No. of tillers/m 2 (320.67),dry matter accumulation/m 2 (926.94g/m 2 ) and leaf area index (3.40)along with highest grain (44.37q/ha) and straw yield (71.80 q/ha) which was next to weed free check at harvest.