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Effect of crop establishment methods and weed control treatments on weed management, and rice yield

Chauhan, Bhagirath Singh and Awan, Tahir Hussain and Abugho, Seth Bernard and Evengelista, Gio and Yadav, Sudhir (2015) Effect of crop establishment methods and weed control treatments on weed management, and rice yield. Field Crops Research, 172 . p. 72. ISSN 03784290

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Article Link(s): http://dx.doi.org/10.1016/j.fcr.2014.12.011

Publisher URL: http://www.sciencedirect.com/science/article/pii/S0378429014003578

Abstract

Lower water availability coupled with labor shortage has resulted in the increasing inability of growers to cultivate puddled transplanted rice (PTR). A field study was conducted in the wet season of 2012 and dry season of 2013 to evaluate the performance of five rice establishment methods and four weed control treatments on weed management, and rice yield. Grass weeds were higher in dry-seeded rice (DSR) as compared to PTR and nonpuddled transplanted rice (NPTR). The highest total weed density (225-256plantsm-2) and total weed biomass (315-501gm-2) were recorded in DSR while the lowest (102-129plantsm-2 and 75-387gm-2) in PTR. Compared with the weedy plots, the treatment pretilachlor followed by fenoxaprop plus ethoxysulfuron plus 2,4-D provided excellent weed control. This treatment, however, had a poor performance in NPTR. In both seasons, herbicide efficacy was better in DSR and wet-seeded rice. PTR and DSR produced the maximum rice grain yields. The weed-free plots and herbicide treatments produced 84-614% and 58-504% higher rice grain yield, respectively, than the weedy plots in 2012, and a similar trend was observed in 2013.

Item Type:Article
Business groups:Agriculture
Keywords:Dry cultivation Dry-seeded rice Herbicides Puddled transplanted rice Weed management crop yield cultivation performance assessment rice weed control
Subjects:Science > Invasive Species > Plants > Integrated weed control
Plant pests and diseases
Agriculture > Agriculture (General) > Methods and systems of culture. Cropping systems
Deposited On:18 Mar 2015 01:24
Last Modified:18 Mar 2015 01:24

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