Direct-seeded rice (DSR) is a cost-effective and environmentally friendly method of crop establishment. Weed menaces in DSR considerably reduce the yield potential, which can be addressed by effective irrigation and weed management practices. Information on the impact of various water-saving irrigations and brown manure (BM) on water use, weed studies, and the yield of drum-sown rice is very limited. A field investigation was conducted to determine the effects of alternate wetting and drying irrigation (AWDI) methods (10 cm, 15 cm dropped from FWT and farmers practices) and BM (Sesbania at 15, 20 and 25 kg ha-1, Pretilachlor 0.45 kg ha-1 as PE fbBispyribac Na 25 g ha-1 as PoE + hand weeding (HW) on 45 DAS, HW at 20 and 45 DAS, and weedy check. The results revealed that AWDI at 15 cm depletion of FWT with HW on 20 and 45 DAS increased the water use efficiency (5.3 kg ha mm-1), water productivity (0.53 kg m-3), water saving percentage (35.83%), and reduced the water consumption (770 mm). Continuous submergence with HW at 20 and 45 DAS significantly increased grain (4.4 t ha-1) and straw yield (6.5 t ha-1). At the same time, it reduced the grasses (53.3 and 58.4%) and sedges (76 and 75%), density and dry weight, respectively, over AWDI at 10 cm dropped from FWT. Thus, irrigation at 10 cm below FWT with sesbania BM at 20 kg ha-1 could be recommended for higher productivity of drum-sown rice under sodic soil conditions.

Aim: To study the Influence of nutrient management on growth, lodging and yield of transplanted rice. Study Design: The study comprised of eight treatments viz.,T1- 100% NPK, T2- 100% NP + 125% K, T3- 75% N + 100% PK, T4- 75% N + 100% P + 125% K, T5- 100% NPK + K2SiO4 at 50 kg ha­-1, T6- 100% NPK + Ca2SiO4 at 50 kg ha­-1, T7- 100% NPK + Na2SiO3 at 50 kg ha­-1 and T8- absolute control in randomized block design. Place and Duration of Study: This research trail was conducted during the late samba (September – February) of 2021-22 at Anbil Dharmalingam Agricultural College and Research Institute. TNAU, Trichy, Tamil Nadu, India. Methodology: The study consisted of combination of 8 treatments in RBD which was replicated thrice. The rice variety of IW Ponni was used for this study. The observation have been recorded during the different phases of growth at regular intervals. Results: The results revealed that the application of 100% NPK + K2SiO4 at 50 kg ha­-1 has recorded significantly taller plant height (131.7 cm), higher dry matter production (11360 kgha­-1), grain (4535 kg ha-1) and straw yield (7259 kg ha-1) over absolute control. Minimum bending moment and lodging score were reported with 100% NPK + K2SiO4 at 50 kg ha­-1 and it was on par with 100% NPK + Ca2SiO4 at 50 kg ha­-1.