Integrated Weed Management Studies in Direct Seeded Upland Rice (Oryza sativa)
Abstract
Field studies conducted on integrated weed management in direct seeded upland rice at Himachal Pradesh Krishi Vishvavidyalaya. Palampur during kharif 1992 and 1993 revealed that oxyfluorfen 0.2S kg/ha (3 DAS) in integration with halod and 100 kg/ha seed rate was effective in controlling the weeds and increasing grain yield of paddy by 35.01% over the farmer practice of hand weeding twice in integration with halod and 100 kg/ha seed rate. However, it was statistically at par with oxyfluorfen 0.25 kg/ha integrated with halod and 150 kg/ha seed rate, butachlor 1.5 kg/ha (3 DAS) in integration with 100 kg/ha seed rate without halod and hand weeding twice in integration with 100 kg/ha without halod. Because of the higher prices of oxyfluorfen, higher net returns per rupee invested were obtained with butachlor 1.5 kg/ha in integration with 100 kg/ha seed rate without halod.
