Evaluation of Alkombo and Tank Mixture of Almix+Butachlorfor the Control of Weeds in Transplanted Rice

A field experiment was conducted at CCS Haryana Agricultural University Regional Research Station. Kamal during kharif 2000 and 2001 to evaluate the efficacy of Alkombo [Almix (chlorimuron ethyl+metsulfuron methyl)+anilofos] (readymix) and tank mixture of Almix+butachlor in transplanted rice. Alkombo at 280.5 g ha⁻¹ was at par with butachlor at 1500 g ha⁻¹, anilofos at 400 g ha⁻¹ and pretilachlor at 1000 g/ha⁻¹ in reducing the dry weight of weeds and these treatments proved significantly superior to butachlor at 1250 g ha⁻¹, pretilachlor at 625 g ha⁻¹ and anilofos at 300 g ha⁻¹. Butachlor and Almix as tank mixture did not significantly decrease the dry weight of weeds over the alone application of butachlor at corresponding dose. Application of Alkombo at 280.5 g ha⁻¹, butachlor at 1500 g ha⁻¹, anilofos at 400 g ha⁻¹ and pretilachlor at 1000 g ha⁻¹, and tank mixture of Almix+butachlor at 4+1250 g ha⁻¹ produced similar effective tillers and consequently grain yield of rice to that of plot kept weed free for the whole season.