Efficiency of some herbicides and manual weeding for weed control in irrigated Bt cotton 

DOI: 10.18805/IJARe.A-4963    | Article Id: A-4963 | Page : 315-318
Citation :- Efficiency of some herbicides and manual weeding for weed control in irrigated Bt cotton.Indian Journal Of Agricultural Research.2018.(52):315-318
R.K. Mathukia, B.K. Sagarka, P.R. Mathukia and N.V. Savaliya rkmathukia@jau.in
Address : Department of Agronomy, College of Agriculture, Junagadh Agricultural University, Junagadh - 362 001, Gujarat, India.
Submitted Date : 12-12-2017
Accepted Date : 11-04-2018

Abstract

To evaluate the efficacy of some pre and post-emergence herbicides for weed control in Bt cotton (var. Beejdhan 2), a field experiment was conducted during rainy seasons of 2014-15, 2015-16 and 2016-17 at Junagadh (Gujarat, India). The dominant weed flora in cotton field were Digera arvensis, Eluropus villosus, Cyperus rotundus, Cynodon dactylon, Echinochloa crusgalli, Chenopodium album, Convolvulus arvensis, Trianthema monogyna, Amaranthus spinosus, Commelina benghalensis and Asphodelus tenuifolius. The results revealed that treatments viz., hand weeding (HW) and interculturing (IC) at 30, 60 and 90 DAS, pendimethalin 0.9 kg ha-1 as pre-emergence fb HW and IC at 30 and 60 DAS, and pendimethalin 0.9 kg ha-1 as pre-emergence fb quizalofop 40 g ha-1 as post-emergence at 45 DAS were found superior to the unweeded check in enhancing growth and yield attributes viz., plant height, number of monopodial and sympodial branches plant-1, number of bolls plant-1, single boll weight and seed cotton weight plant-1 and ultimately increased seed cotton and stalk yields. These treatments also recorded lower dry weight of weeds and weed index along with higher weed control efficiency, net return and B:C ratio as compared to unweeded check.

Keywords

Cotton Glyphosate Imazethapyr Oxadiargyl Pendimethalin Quizalofop.

References

  1. Das, T.K. (2008). Weed Science: Basic and Applications. Jain Brothers, New Delhi, India.
  2. Gill, G.S. and Kumar, V. (1969). Weed index a new method for reporting weed control trails. Indian Journal of Agronomy, 16: 96-98.
  3. Kondap, S.M. and Upadhyay, U.C. (1985). A Practical Manual of Weed Control. Oxford and IBH Publ. Co., New Delhi, pp. 55.
  4. Madhu, G., Srinivasulu, K., Rani, P.P. and Rao, A.S. (2014). Economics of rainfed Bt cotton as influenced by sequential application of herbicides. Journal of Cotton Research and Development, 28(2): 257-259.
  5. Nadanassababady, T., Kandasamy, O.S., Selvi, R.V. and Anbumani, S. (2002). Chemical weed control using non-selective herbicides in irrigated cotton (G. hirsutum). Agricultural Science Digest, 22(2): 120-122.
  6. Patel, B.D., Patel, R.B., Sheta, B.T., Patel, V.J., Patel, R.A. and Parmar, D.J. (2014). Influence of integrated weed management practices on weeds and yield of Bt cotton. Research on Crops, 15(2): 503-507.
  7. Sankaranarayanan, K., Anbumani, S. and Kempuchetty, N. (2002). Integrated weed management in soybean. Legume Research, 25(2): 135-138.
  8. Shelke, D.V., Paslawar, A.N., Deotalu, A.S., Dandge, M.S. and Joshi, M.S. (2013). Weed control efficiency as influenced by weedicides in cotton and bio-mulching under dryland conditions. Annals of Plant Physiology, 27(1/2): 92-95.
  9. Singh, K. and Rathore, P. (2015). Efficacy evaluation of selected herbicides on weed control and productivity evaluation of Bt cotton in Punjab. Journal of Environmental Biology, 36(4): 993-998.
  10. Singh, M. and Kokate K.D. (2010). Weed management and its effect on cotton (Gossypium hirsutum L.). Annals of Plant Protection Sciences, 18(2): 484-487. 
  11. Yadav, A., Malik, R.S., Malik, R.K. and Hasija, R.C. (2006). Integrated control of weeds in cotton. Environment and Ecology, 24(Special 3A): 883-885. 

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