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

Issue

Vol. 37 No. Specialissue (2020): Journal of Oilseeds Research

Section

Articles

License

The Journal of Oilseeds Research reserves all the copy rights of the published articles and prior permission is to be taken from the journal office if any part of the published articles is to be reproduced in any form in any other publication.

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