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

Authors

  • K S SOMASHEKAR AICRP on Sunflower, University of Agricultural Sciences, GKVK, Bangalore-560 065, Karnataka
  • G M SUJITH AICRP on Sunflower, University of Agricultural Sciences, GKVK, Bangalore-560 065, Karnataka
  • M S UMA AICRP on Sunflower, University of Agricultural Sciences, GKVK, Bangalore-560 065, Karnataka
  • K RAMESH AICRP on Sunflower, University of Agricultural Sciences, GKVK, Bangalore-560 065, Karnataka
  • D NEHRU AICRP on Sunflower, University of Agricultural Sciences, GKVK, Bangalore-560 065, Karnataka
  • K M SRINIVAS REDDY AICRP on Sunflower, University of Agricultural Sciences, GKVK, Bangalore-560 065, Karnataka
  • C P MANJULA AICRP on Sunflower, University of Agricultural Sciences, GKVK, Bangalore-560 065, Karnataka

https://doi.org/10.56739/jor.v37iSpecialissue.140849

Keywords:

Pendimethalin, Weed control, Weed control efficiency

Abstract

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.

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Submitted

2023-08-14

Published

2020-03-12

How to Cite

K S SOMASHEKAR, G M SUJITH, M S UMA, K RAMESH, D NEHRU, K M SRINIVAS REDDY, & C P MANJULA. (2020). Efficacy of pre and post-emergence herbicide on growth, yield and economics of sunflower (Helianthus annuus L.) under modified spacing: Efficacy of pre and post-emergence herbicide on growth, yield and economics of sunflower (Helianthus annuus L.) under modified spacing. Journal of Oilseeds Research, 37(Specialissue). https://doi.org/10.56739/jor.v37iSpecialissue.140849