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 2018 - IJCMAS--ICV 2018: 95.39 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 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
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.2017.6(8): 2160-2170
DOI: https://doi.org/10.20546/ijcmas.2017.608.256


Bio-efficacy of Ammonium Salt of Glyphosate 71% SG for Weed Dynamics in Tea (Camellia sinensis L.) and its Effect on Soil Microflora
Adyant Kumar*, Anannya Ghosh, Dibyendu Mondal,Ratikanta Ghosh* and Pintoo Bandopadhyay
Department of Agronomy, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur-741252, West Bengal, India
*Corresponding author
Abstract:

An experiment was conducted at Gurjangjhora Tea Estate, Malbazar, Jalpaiguri during kharif seasons of 2013 and 2014 to find out the efficacy of non-selective ammonium salt of glyphosate 71% SG on weed dynamics in tea and its effect on soil microflora. The experiment was laid out in randomized block design and replicated thrice. The treatment comprised of seven herbicidal treatments viz. ammonium salt of glyphosate 710, 1420, 2130 g a.i. ha-1, standard glyphosate 2130 g a.i. ha-1 and paraquat dichloride 2130 g a.i. ha-1, HW at 20 and 40 days after application besides weedy check. Both the weed density and biomass at 40 and 60 days after application of all the weed control treatments were significantly lower than weedy check. Ammonium salt of glyphosate (71% SG) 2130 g ha-1 proved significantly better for controlling the major pre-dominant tea weed i.e. Cyperus rotundus and Borreria hispida. The higher WCE (90.28%) was recorded under hand-weeding and ammonium salt of glyphosate (71% SG) 2130 g ha-1 (89.10%) at 60 DAS followed by its lower doses. The resurgence of weed flora was observed after two months of application. Herbicides did not show any phytotoxicity symptoms on the matured tea plants throughout the observation period. The herbicidal treatments showed initial detrimental effect on soil microbial (total bacteria, fungi and actinomycetes) population, but no harmful effects were recorded after one month of application.


Keywords: Ammonium salt of glyphosate 71% SG, Bio-efficacy, Phytotoxicity, Soil microflora and Tea.
Download this article as Download

How to cite this article:

Adyant Kumar, Anannya Ghosh, Dibyendu Mondal, Ratikanta Ghosh and Pintoo Bandopadhyay. 2017. Bio-efficacy of Ammonium Salt of Glyphosate 71% SG for Weed Dynamics in Tea (Camellia sinensis L.) and its Effect on Soil Microflora.Int.J.Curr.Microbiol.App.Sci. 6(8): 2160-2170. doi: https://doi.org/10.20546/ijcmas.2017.608.256