Bio-Efficacy and Phytotoxicity of Glyphosate 41% SL on Weed Flora of Tea and its Effect on Soil Microbial Activities

Authors

  • Suresh Kumar Department of Agronomy, College of Agriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062
  • Neelam Sharma Department of Agronomy, College of Agriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062
  • Sandeep Manuja Department of Agronomy, College of Agriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062
  • Parita Department of Agronomy, College of Agriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062
  • Tamanna Bhalla Department of Agronomy, College of Agriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur-176 062

Keywords:

Bio-Efficacy, Glyphosate, Tea, All Clear, Weeds.

Abstract

A field experiment was conducted at the farmers’ field in Panchrukhi block of Kangra District (H.P.) during kharif 2019 to evaluate the bio-efficacy and phytotoxicity of glyphosate 41% SL in tea (Camellia sinensis). The experiment was laid out in a Randomized Block Design with ten treatments and was replicated thrice. The treatments comprised of six doses of a new formulation of glyphosate 41 % SL (All Clear, Anu Products Ltd.) 1.0, 2.0, 3.0, 4.0, 5.0 and 8.0 litre / ha, glyphosate 41 % SL (Roundup, Monsanto), glyphosate 71 % SG 3.0 kg / ha and weedy and weed free checks. Major weeds that were found to infest the experimental tea orchard included Erigeron canadensis, Ageratum conyzoides, Cynodon dactylon, Imperata cylindrica, Paspalum conjugatum and Polygonum alatum. The results revealed that in tea crop weeds can be effectively controlled with the application of glyphosate 41% SL (All Clear) 3.0 litre/ha and 4.0 litre/ha. No phytotoxicity symptoms on tea were observed at any of dose of herbicide.

Downloads

Download data is not yet available.

Downloads

Published

2022-03-23

How to Cite

Kumar, S., Sharma, N., Manuja, S., Parita, & Bhalla, T. (2022). Bio-Efficacy and Phytotoxicity of Glyphosate 41% SL on Weed Flora of Tea and its Effect on Soil Microbial Activities. Himachal Journal of Agricultural Research, 47(2), 235–238. Retrieved from https://hjar.org/index.php/hjar/article/view/168996

Issue

Volume 47, Issue 2, December 2021

Section

Short Communication

References

Bose A, Kumar R and Roy SB 2007. Integrated weed management to control Heridium spp and Polygonum chinensis in young tea plantations of India. In: Proc. 21st Asian Pacific Weed Science Society Conference, pp 565-567, Colombo, Sri Lanka.

Devi NM., Kundu CK., Bera PS., Panda S and Das S. 2019. Evaluation of glyphosate 41% SL to control weeds in tea at Terai region of West Bengal. Journal of Crop and Weed 15: 213-219.

Ilango RVJ, Durairaj J and Mohan KP 2010. Evaluation of Excel-mera 71 for control of Commelina species. Newsletter-UPASI Tea Research Foundation 20:20-25.

Kumar A and Ghosh RK 2015.Bio efficacy of glyphosate for management of weeds in tea. In: 25th Asian Pacific Weed Science Society Conference on Weed Science for Sustainable Agriculture, Environment and Biodiversity, pp377, Hyderabad , India

Mani VS, Malla ML, Gautam KC and Bhagwndas. 1973. Weed killing chemicals inpotato cultivation. Indian Farming 22:17-18.

Opeke KL. 2005.Tropical commodity tree crops. 2nd Ed., Spectrum House, Ibadan, Nigeria, pp 436-440.

Wollum AG 1983. Cultural methods for soil microorganisms. In: Methods of Soil Analysis (Part 2 Chemical and microbiological properties), ed Page AL. American Society of Agronomy, Inc. and Soil Science Society of America, Inc. pp 781-802 (DOI:10.2134/agronmonogr 9.2.2ed).

Most read articles by the same author(s)

1 2 3 4 > >> 

Similar Articles

1 2 3 4 5 6 7 8 9 10 > >> 

You may also start an advanced similarity search for this article.