Effect of chemical weed management practices on yield and economics of direct-seeded rice (Oryza sativa L.) in vertisoil of Chhattisgarh plans

Abstract

A field experiment was conducted during kharif season 2018 at Instructional cum Research Farm, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.). To study Effect of weed management on yield and economics of direct seeded rice (Oryza sativa L.). The treatments consisted of oxyfluorfen 20 DF in five rates of applications (160g, 200g, 240g, 480g and 720g/ ha-1). Pre-emergence application of oxyfluorfen 20 DF @ 240 g ha-1 registered significantly highest values of growth parameters like plant height, number of effective tillers, number of grains panicle-1, test weight and maximum grain (49.51 q ha-1) and straw yield (64.52 q ha-1) with maximum net return (Rs. 54618.24 ha-1) and benefit cost ratio (2.41) followed by oxyfluorfen 20 DF@ 480 g a.i. ha-1 (Rs. 47092.24 ha-1) and (2.17) in direct-seeded rice.