Himachal Journal of Agricultural Research

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Efficacy of herbicidal weed management practices on weed dynamics in direct seeded upland rice of Himachal Pradesh


Affiliations
1 Department of Agronomy, College of Agriculture CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062,, India
 

A field experiment was conducted during kharif 2021 at the Research Farm of Department of Agronomy, College of Agriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur, to study the effectiveness of a new post-emergence broad-spectrum herbicide GOD H008 (Bispyribac sodium 5% SC+ Pyrithiobac sodium 12.5% SG) to control mixed weed flora in direct-seeded upland rice (Oryza sativa L). The experiment was laid out in Randomized Block Design with three replications and seven weed control treatments. The treatments consisted of three doses of GOD H008 (Bispyribac sodium 5% SC+ Pyrithiobac sodium 12.5% SG) viz. 375ml/ha, 500ml/ha and 625ml/ha, bispyribac sodium 250ml/ha, pyrithiobac sodium 625ml/ha, hand weeding (weed free) and untreated check respectively. The predominant weed flora present in the experimental field was Ageratum conyzoides, Cyperus rotundus, Commelina benghalensis, Echinochloa colona, Digitaria sanguinalis and Synedrella nodiflora. Application of new herbicide combination product GOD H008 (Bispyribac sodium 5% SC+ Pyrithiobac sodium 12.5% SG) 500ml/ha being statistically at par with GOD H008 (Bispyribac sodium 5% SC+ Pyrithiobac sodium 12.5% SG) 625ml/ha and bispyribac sodium 250ml/ha resulted in significantly lower total weed count, total weed dry weight and highest weed control efficiency as compared to other weed control treatments. Significantly highest grain and straw yield were recorded with the application of GOD H008 (Bispyribac sodium 5% SC+ Pyrithiobac sodium 12.5% SG) 500ml/ha at harvest and this treatment was closely followed by GOD H008 (Bispyribac sodium 5% SC+ Pyrithiobac sodium 12.5% SG), 625 ml/ha.

Keywords

GOD H008 (Bispyribac sodium 5% SC+ Pyrithiobac sodium 12.5% SG), weed control, direct seeded rice.
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  • Chauhan BS. 2012. Weed ecology and weed management strategies for dry-seeded rice in Asia. Weed Technology 26:1-13.

  • Gaire R, Dahal KR and Amgain LP. 2013. Effect of different mulching materials on weed dynamics and yield of direct-seeded rice in Chitwan, Nepal. Agronomy Journal of Nepal 3:73-81.

  • Hussain S, Ramzan M, Akhter M and Aslam M. 2008. Weed management in direct-seeded rice. Journal of Animal and Plant Sciences 18 (2&3):86-88.

  • Khaliq A, Matloob A, Ahmad N Rasuland F and Awan IU. 2012. Post-emergence control in direct seeded fine rice. The Journal of Animal & Plant Sciences 22 (4):1101- 1106.

  • Kumar J, Singh D, Singh B, Singh R, Panwar S and Gupta AK. 2013. Sowing time and weed management practices to enhance yield of direct-seeded rice. Indian Journal of Weed Science 44 (4):207-209.

  • Kumar S, Rana SS and Angiras NN. 2011. Influence of seeding and weed control methods on the productivity of puddle seeded rice. Himachal Journal of Agricultural Research 37 (2):149-156.

  • Mishra A and Tosh GC. 1979. Chemical weed control studies on dwarf wheat. Journal of Research (Orissa University of Agricultural Science and Technology) 10:1-6.

  • VeeraputhiranR and Balasubramanian R.2013. Evaluation of bispyribac-sodium in transplanted rice. Indian Journal of Weed Science 45 (1):12-15


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  • Efficacy of herbicidal weed management practices on weed dynamics in direct seeded upland rice of Himachal Pradesh

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Authors

Shagun Shukla
Department of Agronomy, College of Agriculture CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062,, India
Suresh Kumar
Department of Agronomy, College of Agriculture CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062,, India
Sandeep Manuja
Department of Agronomy, College of Agriculture CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062,, India
Shabnam Thakur
Department of Agronomy, College of Agriculture CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062,, India

Abstract


A field experiment was conducted during kharif 2021 at the Research Farm of Department of Agronomy, College of Agriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur, to study the effectiveness of a new post-emergence broad-spectrum herbicide GOD H008 (Bispyribac sodium 5% SC+ Pyrithiobac sodium 12.5% SG) to control mixed weed flora in direct-seeded upland rice (Oryza sativa L). The experiment was laid out in Randomized Block Design with three replications and seven weed control treatments. The treatments consisted of three doses of GOD H008 (Bispyribac sodium 5% SC+ Pyrithiobac sodium 12.5% SG) viz. 375ml/ha, 500ml/ha and 625ml/ha, bispyribac sodium 250ml/ha, pyrithiobac sodium 625ml/ha, hand weeding (weed free) and untreated check respectively. The predominant weed flora present in the experimental field was Ageratum conyzoides, Cyperus rotundus, Commelina benghalensis, Echinochloa colona, Digitaria sanguinalis and Synedrella nodiflora. Application of new herbicide combination product GOD H008 (Bispyribac sodium 5% SC+ Pyrithiobac sodium 12.5% SG) 500ml/ha being statistically at par with GOD H008 (Bispyribac sodium 5% SC+ Pyrithiobac sodium 12.5% SG) 625ml/ha and bispyribac sodium 250ml/ha resulted in significantly lower total weed count, total weed dry weight and highest weed control efficiency as compared to other weed control treatments. Significantly highest grain and straw yield were recorded with the application of GOD H008 (Bispyribac sodium 5% SC+ Pyrithiobac sodium 12.5% SG) 500ml/ha at harvest and this treatment was closely followed by GOD H008 (Bispyribac sodium 5% SC+ Pyrithiobac sodium 12.5% SG), 625 ml/ha.

Keywords


GOD H008 (Bispyribac sodium 5% SC+ Pyrithiobac sodium 12.5% SG), weed control, direct seeded rice.

References