Vol. 7, Issue 6 (2019)
Integrated weed management in rice (Oryza sativa L.) grown by system of rice Intensification method
Author(s): Amit Kumar, Rajvir Sharma and Ranjana
Abstract: A field experiment was conducted during kharif season of 2011 at Indian Agricultural Research Institute, New Delhi with ten weed control treatments (T1- Hand weeding at 15 and 30 DAT; T2- Cono weeding at 15, 30 and 45 DAT; T3- Pretilachlor @ 1000 g/ha as PE; T4- Pretilachlor @ 750 g/ha as PE followed by (fb) one cono weeding at 30 DAT;T5- One cono weeding at 15 DAT fb bispyribac sodium @ 25 g/ha at 30 DAT; T6- Pyrazosulfuron-ethyl @ 25 g/ha at 10 DAT; T7- Pyrazosulfuron-ethyl @ 20 g/ha at 10 DAT fb one cono weeding at 40 DAT; T8 - One cono weeding at 15 DAT fb cyhalofop-butyl @ 60 g/ha at 30 DAT;T9- Weed free check; T10- Weedy check) in randomized block design with three replications to find effect of weed control measures on weeds as well as crop growth. Cono weeding done thrice at 15, 30 and 45 DAT caused highest reduction in weeds growth, recorded highest weed control index and produced significantly higher rice grain yield over weedy check. The said treatment was found statistically on par with one cono weeding at 15 DAT fb bispyribac sodium application @ 25 g/ha at 30 DAT and with pyrazosulfuron-ethyl application @ 20 g/ha at 10 DAT fb one cono weeding at 40 DAT treatments.
Pages: 2046-2049 | 255 Views 73 Downloads
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How to cite this article:
Amit Kumar, Rajvir Sharma, Ranjana. Integrated weed management in rice (Oryza sativa L.) grown by system of rice Intensification method. Int J Chem Stud 2019;7(6):2046-2049.
