Post-emergence herbicides efficacy for weed management in kharif maize (Zea mays)

RADHESHYAM RADHESHYAM; S L JAT; C M PARIHAR; A K SINGH; V POONIYA; RAJ SINGH

doi:10.56093/ijas.v91i11.118530

Authors

RADHESHYAM RADHESHYAM ICAR-Indian Institute of Maize Research, New Delhi 110 012, India
S L JAT ICAR-Indian Institute of Maize Research, Delhi Unit, New Delhi
C M PARIHAR ICAR-Indian Institute of Maize Research, New Delhi 110 012, India
A K SINGH ICAR-Indian Institute of Maize Research, Ludhiana
V POONIYA ICAR-Indian Institute of Maize Research, New Delhi 110 012, India
RAJ SINGH ICAR-Indian Institute of Maize Research, New Delhi 110 012, India

https://doi.org/10.56093/ijas.v91i11.118530

Keywords:

Herbicide-efficiency index, Maize, Weed-control efficiency/index, Weed dynamics, Weedpersistence index

Abstract

The escalating labour prices have significantly increased the production cost of kharif maize in India. To addressthis, a field experiment was conducted (2017) to evaluate the efficacy of post-emergence herbicide in kharif maize(Zea mays L.) at ICAR-Indian Institute of Maize Research, Pusa Campus, New Delhi. The tank-mix post-emergenceherbicide application, viz. tembotrione (120 g/ha) or topramezone (25.2 g/ha) at 15 DAS with 75% atrazine (750 g/ha) or as a sequential application at 25 DAS after pre-emergence (PE) 75% atrazine gave significant weed control inkharif maize by reducing density and dry weight. Significantly higher weed-control efficiency, weed-control index,herbicide efficiency index and lower weed persistence index were found in weed-free check, which was at par withPE atrazine (1000 g/ha) followed by hand weeding at 25 DAS and the post-emergence herbicide application oftembotrione (120 g/ha) /topramezone (25.2 g/ha) as tank-mix with 75% atrazine dose as early post-emergence at 15DAS or as the sequential application of these combinations. Significantly lowest weed index was observed in thesequential application of tembotrione/topramezone at 25 DAS after 75% atrazine dose as PE while the highest weedindex (49.3) with alone halosulfuron application. It was concluded that the application of post-emergence herbicide,viz. tembotrione (120 g/ha) /topramezone (25.2 g/ha) as tank-mix at 15 DAS with 75% dose of atrazine (750 g/ha)or as a sequential application at 25 DAS after 75% atrazine as PE found promising for better weed control and grainyield in kharif maize.

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References

Bollman J D, Boerboom C M, Becker R L and Fritz V A. 2008. Efficacy and tolerance to HPPD-inhibiting herbicides in sweet corn. Weed Technology 22: 666–74. DOI: https://doi.org/10.1614/WT-08-036.1

Dass S, Kumar A, Jat S L, Parihar C M, Singh A K, Chikkappa G K and Jat M L. 2012. Maize holds potential for diversification and livelihood security. Indian Journal of Agronomy 57(3rd IAC Special Issue): 32–37.

Idziak R and Woznica Z. 2014. Impact of tembotrione and flufenacet plus isoxaflutole application timings, rates and adjuvant type on weeds and yield of maize. Chilean Journal of Agriculture Research 74(2): 129–34. DOI: https://doi.org/10.4067/S0718-58392014000200001

Kumar B, Kumar R, Kalyani S and Haque M. 2013. Integrated weed management studies on weed flora and yield in kharif maize. Trends in Biosciences 6(2): 161–64.

Kumar S, Rana S S, Chander N and Angiras N. 2012. Management of hardy weeds in maize under mid-hill conditions of Himachal Pradesh. Indian Journal of Weed Science 44(1): 11–17.

Madhavi M, Ramprakash T, Srinivas A and Yakadri M. 2014. Topramezone (33.6% SC) + Atrazine (50% WP) tank mix efficacy on maize. (In) Proceeding of Biennial Conference on Emerging Challenge in Weed Management, DWSR, Jabalpur, Madhya Pradesh, February 15-17, p 23.

Singh A K, Parihar C M, Jat S L, Singh B and Sharma S. 2015. Weed management strategies in maize (Zea mays): Effect on weed dynamics, productivity and economics of the maize- wheat (Triticum aestivum) cropping system in Indo- Gangetic plains. Indian Journal of Agricultural Sciences 85(1): 87–92.

Singh V P, Guru S K, Kumar A, Banga A and Tripathi N. 2012. Bioefficacy of tembotrione against mixed weed complex in maize. Indian Journal of Weed Science 44(1): 1–5.