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http://krishi.icar.gov.in/jspui/handle/123456789/68946
Title: | Post-emergence herbicides efficacy for weed managment in kharif maize |
Authors: | Radheshyam. Jat, S.L. Parihar, C.M. Singh, A.K. Pooniya, V. Singh, Raj. |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR-Indian Institute of Maize Research, New delhi ICAR-Indian Agricultural Research Institute, New Delhi |
Published/ Complete Date: | 2021-04-08 |
Project Code: | Not Available |
Keywords: | Herbicide-efficiency index Maize Weed-control efficiency/index Weed dynamics Weedpersistence index |
Publisher: | Indian Journal of Agricultural Sciences |
Citation: | 3. Radheshyam, Jat, S.L.*, Parihar, C.M., Singh, A.K., Pooniya, V. and Singh, Raj. 2021. Evaluation of post-emergence herbicides in kharif maize (Zea mays): Effect on weed dynamics and weed control efficiencies. Indian Journal of Agricultural Sciences 91(11):1566-70. |
Series/Report no.: | Not Available; |
Abstract/Description: | 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. |
Description: | Not Available |
ISSN: | 0019-5022 |
Type(s) of content: | Research Paper |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Indian Journal of Agricultural Sciences |
NAAS Rating: | 6.37 |
Volume No.: | 91(11) |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/118530 |
URI: | http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/118530 http://krishi.icar.gov.in/jspui/handle/123456789/68946 |
Appears in Collections: | CS-IIMR-Publication |
Files in This Item:
File | Description | Size | Format | |
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Postemergenceherbicideforweedmgtinmaize.pdf | 457.22 kB | Adobe PDF | View/Open |
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