Vol. 5, Issue 2 (2020)
The effectiveness of mixed herbicide bentazone 400 g/l + MCPA 60 g/l against weeds emphasis on tabela rice crop system
Author(s): Dedi Widayat, Yayan Sumekar, Uum Umiyati, Ratna Aghnia Nurochman
Abstract: Weeds are one of the factors that can affect Tabela rice crop system. Weeds control in Tabela rice crop system must be improved because weeds can decrease rice yield. This experiment aims to determine the effect and best dose of Bentazone 400 g/l + MCPA 60 g/l as mixed herbicide for weeds control in Tabela rice crop planting. The experiment conducted in April 2019 until November 2019 at Tomo District, Sumedang Regency. This experiment was arranged in Randomized Block Design with seven treatments and four replications. The treatments was dosage 1,875 l/ha; 2,5 l/ha; 3,125 l/ha; 3,75 l/ha; 4,375 l/ha of mixture herbicide Bentazone 400 g/l + MCPA 60 g/l, manual weeding and without treatment (control). Dosage 1,875 l/ha to 4,375 l/ha of mixture herbicide Bentazone 400 g/l + MCPA 60 g/l effectively control weeds Spenochlea zeylanica, Fimbristylis miliacea, Ludwigia octovalvis, Cyperus iria, Echinochloa crussgalli, Alternanthera philoxeroides, Leptochloa chinensis and Cyperus difformis up to 6 WAP and not cause herbicide toxication in rice crops up to 3 WAP. Herbicide Bentazone 400 g/l + MCPA 60 g/l strating at a dose of 1.875 l/ha effective for weeds control and provide rice grain yield of 6,08 tons/ha.