International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
www.ijsr.net | Most Trusted Research Journal Since Year 2012

ISSN: 2319-7064

Research Paper | Agronomy Science | Nepal | Volume 8 Issue 1, January 2019

Performance of Different Herbicides in Dry Direct Seeded Rice

Dev Kumar Saphi, Dil Raj Yadav

Weeds are the major problem in dry direct seeded conditions competing with the different resources provided to the crop. Hence, field experiments were conducted during rainy seasons of 2013 and 2014 at the experimental field of Rice Research Program, Hardinath, Dhanusha to identify the effective herbicides for control of broad spectrum of weeds in dry direct seeded rice. The experiment was laid out in a randomized complete block design with four replications. Four weed control methods (pendimethalin @ 1000 g a.i./ha as pre-emergence followed by 2, 4-D @ 1000 g a.i./ha as post-emergence, pendimethalin @ 1000 g a.i./ha as pre-emergence followed by penoxsulam @ 22.5 g a.i./ha as post-emergence, pyrazosulfuron ethyl @ 20 g a.i./ha as pre-emergence followed by 2, 4-D @ 1000 g a.i./ha as post-emergence, pyrazosulfuron ethyl @ 20 g a.i./ha as pre-emergence followed by Bispyribac sodium @ 25 g a.i/ha + azimsulfuron @ 17.5 g a.i./ha and weedy check as control) were evaluated. The statistical analysis showed that the effect of weed control methods on yield and yield attributing parameters of the tested rice varieties was significant. Of the tested herbicides, the highest grain yield of 4.1 t/ha was recorded in pyrazosulfuron fb bispyribac sodium + azimsulfuron. This treatment was found to control broad spectrum of weeds and reduced the weed biomass by 92 %.

Keywords: Dry direct seeded, herbicides, weed biomass

Edition: Volume 8 Issue 1, January 2019

Pages: 479 - 481


How to Cite this Article?

Dev Kumar Saphi, Dil Raj Yadav, "Performance of Different Herbicides in Dry Direct Seeded Rice", International Journal of Science and Research (IJSR), https://www.ijsr.net/search_index_results_paperid.php?id=ART20194224, Volume 8 Issue 1, January 2019, 479 - 481

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