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VOL. 3, ISSUE 7 (2016)
Weed infestation in rice (Oryza sativa L.) as influenced by seeding techniques and weed management practices
Authors
Manoj Kumar Shukla, Pradeep Prasad, Vikram Singh, Ravi Kant Chobey
Abstract
In order to study the effect of seeding techniques and weed management practices on weed flora present in rice field an experiment was conducted during kharif season of 2013 at Crop Research Farm, Department of Agronomy, Sam Higginbottom Institute of Agriculture, Technology and Sciences, Allahabad, U.P. in sandy loam soil. The experiment was laid out in split plot design in which four seeding techniques and five weed management practices along with weedy check with three replications were adopted. The different treatments were allocated randomly in each replication. In the experimental field maximum weed appeared% was recorded by Sorghum halapense (9.56 %) followed by Echinochloa colona (7.74). The top five ranking of weeds which generally affected the growth and yield of rice was Sorghum halapense > Echinochloa colona > Digitaria sanguinalis > Echinochloa crusgalli > Dactyloctenium aegyptium. Among the seeding techniques minimum density of Echinochloa colona, Echinochloa crusgalli, Eleusine indica, Brachiaria reptans, Cynodon dactylon, Sorghum halapense, Dactyloctenium aegyptium and Digitaria sanguinalis were recorded in P1 (Transplanted rice in puddled soil) followed by P3 (DSR in puddled soil). W3 (Pyrazosulfuron at 20 g/ha as pre emergence + one hand weeding at 40 DAT/DAS) was most effective and significantly superior to all tank mix application of herbicides in reducing density of all the grasses followed by W6 (Tank mix application of Fenoxaprop at 90 g/ha + Ethoxysulfuron at 18 g/ha at 18 DAT/DAS).
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Pages:177-180
How to cite this article:
Manoj Kumar Shukla, Pradeep Prasad, Vikram Singh, Ravi Kant Chobey "Weed infestation in rice (<em>Oryza sativa </em>L.) as influenced by seeding techniques and weed management practices". International Journal of Multidisciplinary Research and Development, Vol 3, Issue 7, 2016, Pages 177-180
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