Vaghasia, P.M. and Nadiyadhara, M.V. (2013) Effect of post-emergence herbicides in groundnut and its residual effect on succeeding crops. International Journal of Forestry and Crop Improvement, 4 (2). pp. 54-58.
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Abstract
A field investigation was carried out at Main Oilseeds Research Station, Junagadh Agricultural University, Junagadh, duringKharif 2011 and 2012 on clayey soil to study the efficacy of post emergence herbicides on Kharif groundnut and its residual effect on succeeding crops of wheat and gram. An experiment was done with eleven treatments of post-emergence herbicides comprising weedy cheek replicated thrice in Randomized Block Design (RBD).The various weeds observed in groundnut field during Kharif season were, among the narrow leaved weeds the Echinochloa colonum, Dinebra. retroflexa, Dactyloctenium aegyptium and Brachiaria Spp. were more rampant. The broad leaved weeds like, Commelina benghalensis, Digera arvensis, Indigofera glandulosa and Amaranthus viridis was marked their presence in good numbers. Based on two years field experimentation, it was found that early post emergence application of Odyssey 70 % WG at 70 g ha-1 + MSO adjuvant @ 2ml/litre of water gave significantly lower total weed density(6.34), weed dry weight(96 g m-2)and higher weed control efficiency (75 %). Application of new formulation of Odyssey 70 % WG at 70 g ha-1 + MSO adjuvant @ 2ml/litre of water as early post emergence herbicide kept the weed density and dry weight below the economic threshold level and increased the pod yield, haulm yield and kernel yield (1411,2783 and 1010 kg ha-1, respectively) and this was at par with early post emergence application of Imazethapyr 10% SL @ 100 g ha-1 + MSO adjuvant@ 2.0 ml/litre of water and Quizolofop ethyl 5% EC 50 g ha-1 in groundnut. Succeeding crops like wheat and gram sown immediately after the harvest of groundnut was not affected by the residue of herbicides at all different doses
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Groundnut, Weed density, Weeds control efficiency, Yield, Succeeding crops |
| Author Affiliation: | Main Oilseeds Research Station, Junagadh Agricultural University, Junagadh, Gujarat, India |
| Subjects: | Plant Production |
| Divisions: | Groundnut |
| Depositing User: | Mr T L Gautham |
| Date Deposited: | 27 Nov 2015 10:17 |
| Last Modified: | 27 Nov 2015 10:17 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/14041 |
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