1Department of Agronomy, Annamalai University, Annamalai Nagar-608 002, Tamil Nadu, India
2Department of Agronomy, Rice Research Station (TNAU), Tirur-602 025, Tamil Nadu
3Department of Agronomy, Annamalai University, Annamalai Nagar-608 002, Tamil Nadu, India
4Regional Plant Quarantine Station (RPQS), Meenambakkam, Chennai-600 016, Tamil Nadu
*Corresponding author’s e-mail: gokulbabu48@gmail.com
Online published on 28 March, 2025.
A field experiment was conducted during kharif season of 2022 to evaluate the growth and yield response of direct seeded rice under different formulation of new generation herbicides. The results revealed that, pre emergence application of bensulfuron methyl 0.6% + pretilachlor 6% GR @ 10 kg ha-1 on 7 DAS fb hand weeding on 40 DAS recorded broad spectrum of weed control. The highest crop growth attributes (tillers/hill, leaf area index and total dry matter), yield attributes (productive tiller, filled grains/panicle, panicle weight) and grain yield (6670 kg ha-1), net returns (Rs.94991 ha-1) and the highest returns per rupee invested (Rs.2.77) were recorded in pre emergence application of bensulfuron methyl 0.6% + pretilachlor 6% GR @ 10 kg ha-1 on 7 DAS fb hand weeding on 40 DAS, which was best broad spectrum effective herbicide in order to minimize the diverse weed flora in direct seeded rice.
Direct seeded rice, New generation herbicides, Growth, Yield