Effect of Different Weed Management Practices and Wet Seeding Methods on Weed Control, Growth and Yield of Unpuddled Rice (Oryza sativa L.) in Tamirabarani Command Area

Field experiment was conducted at Agricultural College and Research Institute, Killikulam (TNAU) during Late Pishanam (November 2017 – March 2018) to study the various wet seeding methods and weed management practices on growth and yield of unpuddled rice in Tamirabarani command area. The experiment was laid out in randomized block design and replicated thrice with fourteen treatments. Treatments involving seven weed management practices were tested wit h two methods of wet seeding in rice by drum seeder and paddy cum dhaincha seeder. All the weed control treatments with seeding methods significantly reduced the density of weeds which resulted in significantly higher growth and yield of rice over unweeded control. The results revealed that among the treatments, rice established through drum seeder along with the pre emergence application of pyrazosulfuron ethyl at 20 g a.i ha-1 on 8 DAS followed by POE bispyribac sodium at 25 g a.i ha-1 at 30 DAS not only significantly reduced the density of weeds but also increased the growth and yield of rice.