Studies on herbicidal efficacy and spectrum of activity of different herbicides in transplanted rice
2002
Hassan, G. (NWFP Agricultural Univ., Peshawar (Pakistan). Dept. of Weed Science) | Khan, Q.N. | Khan, N.U. | Khan, S.U.
To evaluate the effect of different pre - and post emergence herbicides in paddy, experiments were conducted during 1993 and 1994 at Agricultural Research Institute D.I. Khan. Seven pre - and post- emergence herbicides in comparison with hand weeding and weedy check were evaluated. The results obtained during both the years revealed that weed control treatments educed the weed infestation and elevated the paddy yield. In 1993, hand weeding followed by Basagran EC (post-em) and Rilof EC (pre-em) were the most effective in reducing the weed infestation to a level of 6, 13 and 17 weed plants m-2, respectively. The highest grain yield of 5260 and 3256 kg ha-1 were recorded in hand weeded and Basagran EC (post-em) treated plots. During 1994, hand weeding, and Basagran EC (post-em) reduced the weed infestation to 6 and 11 plants by producing a paddy yield of 3698 and 2604 kg ha-1.
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