Follow
International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2019) [Effective from January 1, 2019]For more details click here

Login as a Reviewer

Indexed in



National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

See Guidelines to Authors
Current Issues

Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(3): 422-430
DOI: https://doi.org/10.20546/ijcmas.2019.803.053


Effect of Early Post Emergent Herbicides/ Herbicide Mixtures on Weed Control and Soil Biological Activity in Maize L
V. Varshitha*, Ramesh Babu, P. Jones Nirmalnath, Ashpakbeg M. Jamadar and M. Roopashree
Department of Agronomy, College of Agriculture, University of Agricultural Sciences, Dharwad 580005, Karnataka, India
*Corresponding author
Abstract:

A field experiment was conducted to study the effect of herbicides on weed control and soil microbial activity. The experiment consisted of 12 treatments laid out RCBD. The treatments consisted of herbicides viz., atrazine, 2,4-D, tembotrione, topramezone and their tank mixtures sprayed at 16 DAS as early post emergent herbicides, they were checked against recommended weed management practice- atrazine 1.25 kg ha-1 (PRE) + 1HW + 1IC, sequential application-atrazine (PRE) fb 2,4-D,Weed free and weedy check. The results indicated that significantly lower weed density (7.67 per 0.5 m2), Weed index (7.07 %) was observed with application of topramezone + 2,4-D next to recommended weed management practices. The next best treatment was tembotrione + 2,4-D. The mixtures recorded broad spectrum weed control than sole application of herbicides. Higher biological activity with respect to dehydrogenase activity (8.70 μg TPF g-1 soil day-1) was observed in topramezone + 2,4-D. Higher grain yield (5582 kg ha-1) and net returns (53769 ₹ ha-1) was recorded in topramezone + 2,4-D next to recommended weed management practice. However weedy check was inferior to all other treatments.


Keywords: Early Post Emergent Herbicides, Maize
Download this article as Download

How to cite this article:

Varshitha, V., Ramesh Babu, P. Jones Nirmalnath, Ashpakbeg. M. Jamadar and Roopashree, M. 2019. Effect of Early Post Emergent Herbicides/ Herbicide Mixtures on Weed Control and Soil Biological Activity in Maize. L.Int.J.Curr.Microbiol.App.Sci. 8(3): 422-430. doi: https://doi.org/10.20546/ijcmas.2019.803.053