Assessment of bio-mulches on weed control in sunflower (Helianthus annuus L.)


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Assessment of bio-mulches on weed control in sunflower (Helianthus annuus L.)

Authors

  • B S VIDYASHREE Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore-641 003
  • P MURALI ARTHANARI Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore-641 003

https://doi.org/10.56739/jor.v37iSpecialissue.139860

Keywords:

Bio-mulching, Seed yield, Sunflower, Weed control

Abstract

A field experiment was conducted at Tamil Nadu Agricultural University, Coimbatore to evaluate bio-mulching
to control weeds in sunflower during rabi, 2018-19. The experiment was carried out in RBD with three replications. The treatments comprised of Terminalia chebula powder @ 400 kg/ha, mango leaves @ 4 t/ha, tamarind leaves @ 4 t/ha, eucalyptus leaves @ 7 t/ha, mustard seed powder @ 160 kg/ha, neem leaves @ 2.5 t/ha, hand weeding at 30 and 45 DAS and un-weeded/unmulched. The results revealed that application of eucalyptus leaves mulch on the soil surface between the rows @ 7 t/ha was effective in controlling weeds and recorded lowest weed index (4.3) and produced seed yield of 2297 kg/ha which was on par with that of best treatment of hand weeding twice (2400 kg/ha). Crop yields were negatively correlated with weed index.

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References

Dhanlakshmi P 2015. Evaluation of pre and post-emergence herbicides in irrigated sunflower. M.Sc Thesis, Department

of Agronomy, Tamil Nadu Agricultural University, Coimbatore.

Gill H S 1969. Weed index-a new method for reporting weed control trials. Indian Journal of Agronomy, 14 (1): 96-98.

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Submitted

2023-07-27

Published

2020-03-12

How to Cite

Assessment of bio-mulches on weed control in sunflower (Helianthus annuus L.): Assessment of bio-mulches on weed control in sunflower (Helianthus annuus L.). (2020). Journal of Oilseeds Research, 37(Specialissue). https://doi.org/10.56739/jor.v37iSpecialissue.139860