Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, Union Territory of Pondicherry-609 603, India.
Field experiments were conducted during 1994–95 and 1995–96 at Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, Union Territory of Pondicherry to study the efficacy of pre-emergence herbicides for weed control in lowland transplanted rice. The results revealed that thiobencarb was very effective in controlling weed growth and recorded higher weed control efficiency (82.9 to 92.7%) followed by butachlor (81.1 to 85.0%) and was comparable with two hand weedings at 20 and 40 DAT (83.0 to 87.5%). Among herbicides, thiobencarb @ 1.50 kg ha−1 recorded the maximum yield (4.31 to 4.33 t ha−1) and was on par with weed free treatment (4.43 to 4.51 t ha−1).
