Performance of acetachlor and anilofos ethoxysulfuron for weed control in transplanted rice (Oryza sativa) SANDEEP NARWAL , SAMAR SINGH, K.S PAN WAR , R.K. MALIK

Abstract

A field study was conducted during the rainy seasons of 1999 and 2000 to evaluate the performance of 2 new herbicides, viz. acetachlor and ready mixture of anilofos ethoxysulfuron , on weed density, weed dry weight, yield and yield attributes of transplanted rice (Oryza sativa L.). Acetachlor at 150 g a.i.1ha applied 3 days after transplanting (DAT) and ready mixture of anilofos ethoxysulfuron at 390 g a.i.1ha applied 8 DAT proved effective in controlling both tyees of weeds and these were found at par with butachlor at 1,500 g a.i.1ha in , controlling the grassy weeds. The plots treated with acetachlor at 150 g a.i./ha applied 3 DAT and anilofos ethoxysulfuron at 390 g a.i./ha applied 8 DAT produced similar number of tillerslm2, number of grainslpanicle, length of panicle, 1,000 grain weight and grain yield of rice to that of plots kept weed free for whole of season during both the seasons. On an average, these parameters registered 41 and 39% higher yield during 1999 and 40 and 42% in 2000, as compared to weedy check. Key words : ethoxysulfuron, Transplanted rice Acetachlor, Anilofos