EVALUATION OF TRIASULFURON 20 WG FROM NEW SOURCE AGAINST WEED IN HEAT, PHYTOTOXICITY AND ITS EFFECT ON SUCCEEDING URD CROP
Rohitashav Singh*, Virpal Singh, Tej Pratap, Ram Pal and Rekha
Department of Agronomy, College of Agriculture, G.B. Pant University of Agriculture & Technology, Pantnagar -263145
[Corresponding author E-mail*: rohitash_1961 @ rediffmail.com]
Received: 18-06-2015 Accepted: 27-07-2015
A field Experimental was conducted during Rabi seasons of 2011-12 and 2012-13 at N. E. Borlaug Crop Research Centre, G.B.P.U.A. & T., Pantnagar to evaluate the bio-efficacy of Triasulfuron 20 WG against weeds in wheat. The soil of the experimental field was clay loam in texture, medium in organic carbon (0.67%), available phosphorus (29.6 kg/ha) and potassium (176.4 kg/ha) with pH 7.2. Results revealed that among the herbicidal treatments application of triasulfuron 20 WG (New source) @ 20 g/ha being at par with commercial standard of triasulfuron 20 WG (Existing source) @ 20 g/ha and metsulfuron methyl 20 WP @ 4 g/ha recorded lowest weed density of Chenopodium album, Cannabis sativa, Coronopus didymus, Medicago denticulata, and Polygonum plebeium, Anagallis arvensis and Melilotus alba at 60 days after sowing as compared to rest of the treatments. The Maximum grain yield was recorded from the weed free plot (5834 & 4836 kg/ha) which was however at par with Triasulfuron 20 WG (New source) @ 20 g/ha (5790 & 4790 kg/ha) during both the years of experimentation.
Keywords: bio-efficacy, Triasulfuron 20 WG, weed control