EFFECT OF TANK MIX APPLICATION OF HERBICIDE AND INSECTICIDE ON WEEDS AND YIELD OF SOYBEAN

S. SANBAGAVALLI¹*, K. VAIYAPURI², D. RAJABASKAR³, J.R. KANNAN BAPU^4
1Department of Pulses, Tamil Nadu Agricultural University, Coimbatore, 641003, India
²Department of Water Technology Centre, Tamil Nadu Agricultural University, Coimbatore, 641003, India
³Department of Pulses, Tamil Nadu Agricultural University, Coimbatore, 641003, India
⁴Department of Pulses, Tamil Nadu Agricultural University, Coimbatore, 641003, India
* Corresponding Author : sanbagavallitnau@gmail.com

Received : 01-12-2016     Accepted : 14-12-2016     Published : 18-12-2016
Volume : 8     Issue : 61       Pages : 3475 - 3477
Int J Agr Sci 8.61 (2016):3475-3477

Keywords : Chlorantraniliprole, Imazethapyr, Weed Control Efficiency, Yield, B:C ratio
Academic Editor : Kanuri Suresh
Conflict of Interest : None declared
Acknowledgements/Funding : We are grateful to Tamil Nadu Agricultural University, Coimbatore for providing facilities and encouragement. Financial assistance by Indian Council of Agricultural Research, New Delhi under All India Coordinated Research Project on Soybean is duly acknowledged
Author Contribution : None declared

Field experiments were conducted at Department of Pulses, Tamil Nadu Agricultural University to evaluate the tank mix application of herbicide and insecticide on weeds and yield of soybean during kharif season of 2013 and 2014. Results showed that application of imazethapyr 10 SL @ 100 g/ha + Chlorantraniliprole 18.5% SC @ 100 ml/ha was found to be more efficient to control monocot and dicot weeds in soybean which recorded lowest weed density (46.7 No./m2), dry weight (20.67 g/m2) and higher weed control efficiency (77.2%) and it was closely followed by indoxacarb 14.5 SC @ 300 ml/ha along with imazethapyr 10 SL @ 100 g/ha. It also found superior in respect of various growth and yield attributes. Highest seed yield (1082 kg/ha) of soybean and maximum net return (₹ 15499/ha) and B:C ratio of 1.69 were recorded in imazethapyr 10 SL @ 100 g/ha + Chlorantraniliprole 18.5% SC @ 100 ml/ha. Based on the results, it can be concluded that tank mix application of imazethapyr or quizalofop-ethyl were compatible with insecticides of Chlorantraniliprole or indoxacarb can be recommended as an effective weed and pest management practices with respect to yield and profit of soybean.