Efficacy of pre and post-emergence herbicide on growth, yield and economics of sunflower (Helianthus annuus L.) under modified spacing
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Efficacy of pre and post-emergence herbicide on growth, yield and economics of sunflower (Helianthus annuus L.) under modified spacing
Keywords:
Pendimethalin, Weed control, Weed control efficiencyAbstract
Application of pendimethalin @ 1.0 kg a.i./ha as pre-emergence spray along with propaquizafop @ 62 g a.i/ha at 15-20 DAS as post emergent spray recorded significantly lower weed dry weight (53.5 g/m2 area), weed index (5.31) and higher weed control efficiency (89.1 %), seed yield (1728 kg/ha), head diameter (16.06 cm), test weight (6.06 g), gross returns (` 65,266), net returns (` 26,248) and B:C ratio (2.48).
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References
Nagre B, Kamble A, Danawale N and Dhonde M 2017. Crop geometry and weed management effect on weed dynamics in soybean. Indian Journal of Weed Science, 49(1): 95-97.
Triveni U, Rani Y S, Patro T S S K and Bharathalakshmi M 2017. Effect of different pre and post emergence herbicides on weed control, productivity and economics of maize. Indian Journal of Weed Science, 49(3): 231- 235.