Document Type: Original Article

Authors

Directorate of Research, VNM Agricultural University, Parbhani 431402, India

Abstract

A field experiment was conducted at Cotton Research Scheme Farm, VNMKV, Parbhani during kharif season 2015-16 and 2016-17 in randomized block design with seven treatments in three replicates. Sowing was done by dibbling with spacing 120 cm x 30 cm for Bt.cotton and for soybean 60cm x 5cm. The result indicated that, spraying of pre emergence application of Oxyflurofen 23.5% EC at 0.1 kg/ha ai followed by hand weeding and hoeing at 6 week after sowing (WAS) recorded significantly highest seed cotton equivalent yield (1868 kg ha-1), gross monetary returns (8159 Rs/ha) and net monetary returns (39024 Rs/ha) over rest of the treatment except it was on par with application of pre emergence application of Pendimethalin 30% EC at 0.75 kg/ha ai with hand weeding and hoeing at 6 WAS and Alachlor 50 % EC at 2.0 kg/ha ai followed by hand weeding and hoeing at 6 WAS. The treatment Spraying of pre emergence application of Oxyflurofen 23.5% EC at 0.1kg/ha ai followed by hand weeding and hoeing at 6 WAS was found productive and profitable followed by Pendimethalin 30% EC at 0.75 kg/ha ai with hand weeding and hoeing at 6 WAS and Alachlor 50 % EC at 2.0 kg/ha ai followed by hand weeding and hoeing at 6 WAS.

Keywords

Bukan B. 2004. Critical periods for weed control in cotton in turkey. Weed Res. 44: 404-412.

Cheema M.S, Akhtar M, Iqbal M.S. 2005. Evaluation of chemical, mechanical and manual weed control methods in cotton. Pak. J. Weed Sci. Res. 11:  47-50.

Giri A.N, Deshmukh M.N, Gore S.B. 2006. Effect of cultural and integrated methods of weed control on cotton, intercrop yield and weed‐control efficiency in cotton ‐based cropping systems. Indian J. Agron.51: 34‐36.

Hallikeri S.S, Halemani H.L, Nandagavi R.A. 2004. Integrated Weed Management in Cotton Under Assured Rainfall Situation. Karnataka J. Agric. Sci. 17: 663-669.

Jagtap D.N,  Pawar P.B, Sutar M.W, Jadhav M.S, Pinjari S.S, Meshram N.A. 2018. Effect of weed management practices on Kharif rice- A review. Journal of Research in Weed Science. 1(2): 37-47.

Jain H.K. 1982. Determination of harvest index. Indian Farm. 21: 527-530.

Malik M.S, Norsworthy J.K, Culpepper A.S, Riley M.B, Bridges W. 2008. Use of wild radish (Raphanus raphanistrum) and rye cover crops for weed suppression in sweet corn. Weed Sci. 56: 588-595.

Sultan A.M, Barwary S.H. 2008. Effect of different methods of weed control on weed growth and yield of cotton (Gossypium hirsutum L.). Mesopotamia J. Agric. 36 (4).

Venugopalan M, Sankaranarayanan V, Blaise K, Nalayini D, Prahraj P, Gangaiah B. 2009. Bt. cotton (Gossypium sp.) in India and its agronomic requirements; A review. Indian J. Agron. 54: 343-360.

Willey R.W. 1979. Intercropping: its importance and research needs. Part 1. Competition and yield advantages. Field Crop Abstracts32: 1-10.

Yaduraju N.T. 2002. Weed management in oilseed crops. In : Oilseeds and Oils : Research and Development Needs, edited by Rai M, Singh H, Hegde D.M. Indian Society of Oilseed Research. 172-183.