Vol. 8, Issue 2 (2020)
Effect of different weed management practices on growth, yield attributes and yield of direct seeded rice (Oryza sativa L.)
Author(s): Sumit, Dr. KL Nandeha and Sunil Kumar
Abstract: A field experiment was conducted on Instructional cum Research Farm, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.) during kharif season 2018 to evaluate the new formulation of oxyfluorfen (20 % DF) on weed control in direct seeded rice. Oxyfluorfen is a diphenyl-ether herbicide as a pre-emergence herbicide used for control of annual, perennial and broad leaved weeds in a various field crops. Pre-emergence (PE) application of oxyfluorfen 20 DF @ 720 g ha-1 gave significantly lower total weed density, weed dry weight and higher weed control efficiency at all the intervals. However, Oxyfluorfen 20 DF @ 240 g ha-1 as PE herbicide can keep the weed density and dry weight below the economic threshold level and increase the grain yield (49.51 q ha-1) and straw yield (64.52 q ha-1) in direct seeded rice. Unweeded control accounted for lower grain yield (5.83 q ha-1) which causes higher weed density and dry weight, respectively due to heavy competition of weeds for nutrients, space and light.
DOI: 10.22271/chemi.2020.v8.i2ar.9188
Pages: 2879-2883 | 546 Views 157 Downloads
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How to cite this article:
Sumit, Dr. KL Nandeha, Sunil Kumar. Effect of different weed management practices on growth, yield attributes and yield of direct seeded rice (Oryza sativa L.). Int J Chem Stud 2020;8(2):2879-2883. DOI: 10.22271/chemi.2020.v8.i2ar.9188
