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P-ISSN: 2349-8528, E-ISSN: 2321-4902   |   Impact Factor: GIF: 0.565

International Journal of Chemical Studies

Vol. 6, Issue 2 (2018)
Bio-efficacy and phyto-toxicity of new herbicides against weeds in soybean


Author(s): Pundas, GK Shrivastava and Rakesh Ratre

Abstract: The proposed experiment was carried out during kharif season of 2016 at Instructional cum Research Farm, Indira Gandhi Krishi Vishwavidyalaya, Raipur (Chhattisgarh). The experiment was comprised of weed management practices viz. T1- Fomesafen 17.5% w/w ME + Clodinafop 12.5% w/w ME @ 750 g a.i. ha-1 as PoE, T2- Fomesafen 17.5% w/w ME + Clodinafop 12.5% w/w ME @ 1000 g a.i. ha-1 as PoE, T3- Fomesafen 17.5% w/w ME + Clodinafop 12.5% w/w ME @ 1250 g a.i. ha-1 as PoE,T4- Clodinafop 12.5 % w/w M @ 1000 g a.i. ha-1 as PoE, T5- Fomesafen 17.5%w/w ME @ 1000 g a.i. ha-1 as PoE, T6- Fomesafen 11.1% w/w + fluzifop- p-butyl 11.1% w/w SL @ 1000 g a.i. ha-1 as PoE, T7- Imazythapyr @ 300 g a.i. ha-1 as PoE, T8- Quizalofop ethyl + chlorimuron ethyl @ 400+16 g a.i. ha-1 as PoE, T9- Hand weeding twice at 20 and 40 DAS and T10- weedy check. Experiment was laid out in Randomized Block Design with three replications. Result indicated that the T9- hand weeding twice at 20 and 40 DAS however, it was found effective in enhancing plant height, growth of branches and dry matter production of soybean showed at par with T3- Fomesafen 17.5% w/w ME + Clodinafop 12.5% w/w ME @ 1250 g a.i. ha-1 as PoE, and T2- Fomesafen 17.5% w/w ME + Clodinafop 12.5% w/w ME @ 1000 g a.i. ha-1 as PoE. T9 -hand weeding twice at 20 and 40 DAS was found effective in enhancing number of nodules plant-1, dry weight of nodules and crop growth rate followed by T3- Fomesafen 17.5% w/w ME + Clodinafop 12.5% w/w ME @ 1250 g a.i. ha-1 as PoE, T4- Clodinafop 12.5% w/w M @ 1000 g a.i. ha-1 as PoE and T2- Fomesafen 17.5% w/w ME + Clodinafop 12.5% w/w ME @ 1000 g a.i. ha-1 as PoE.

Pages: 1815-1823  |  297 Views  6 Downloads

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How to cite this article:
Pundas, GK Shrivastava, Rakesh Ratre. Bio-efficacy and phyto-toxicity of new herbicides against weeds in soybean. Int J Chem Stud 2018;6(2):1815-1823.
International Journal of Chemical Studies