Abstract
Weeds are the main constraint in the adoption of zero-till, dry-seeded rice systems because weeds and rice emerge simultaneously in these systems, and there is no standing water at crop establishment to suppress weeds. A study was conducted during the wet season of 2011 and the dry season of 2012 at the International Rice Research Institute to evaluate the performance of different herbicides in mechanized-sown, zero-till dry-seeded rice. Among the treatments evaluated, oxadiazon followed by penoxsulam + cyhalofop followed by one hand-weeding at 42 d after sowing, provided 23 to 35% higher yield than the nontreated control. The yields in the oxadiazon-treated plots were similar to those in the weed-free plots. Some weed species, including eclipta and doveweed, were not controlled by the evaluated herbicides. Therefore, there is a need to evaluate additional herbicides and to integrate them with cultural weed management strategies to manage such problematic weeds.
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Claims 4
Claim · model-written summary
Oxadiazon followed by penoxsulam + cyhalofop and one hand-weeding at 42 d after sowing gave 23 to 35% higher yield than the nontreated control in dry-seeded rice.
- Taxon
- Rice
Oryza sativat0 - Treatment
- oxadiazon followed by penoxsulam + cyhalofop followed by one hand-weeding at 42 d after sowinge2
- Outcome
- yielde2
- Direction
- highere2
- Value
- 23 to 35%e2
- Comparator
- nontreated controle2
- Setting
- International Rice Research Institutee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Weed Management in Mechanized-Sown, Zero-Till Dry-Seeded Rice”
e1“A study was conducted during the wet season of 2011 and the dry season of 2012 at the International Rice Research Institute”
e2“oxadiazon followed by penoxsulam + cyhalofop followed by one hand-weeding at 42 d after sowing, provided 23 to 35% higher yield than the nontreated control”
Claim · model-written summary
Yields in oxadiazon-treated plots were similar to those in weed-free plots.
- Taxon
- RiceOryza sativat0
- Treatment
- oxadiazone3
- Outcome
- yieldse3
- Direction
- similare3
- Comparator
- weed-free plotse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Weed Management in Mechanized-Sown, Zero-Till Dry-Seeded Rice”
e3“The yields in the oxadiazon-treated plots were similar to those in the weed-free plots”
Claim · model-written summary
Some weed species, including eclipta and doveweed, were not controlled by the evaluated herbicides.
- Taxon
- RiceOryza sativat0
- Treatment
- evaluated herbicidese4
- Interactor
- ecliptae4weed
- Second interactor
- doveweed
Croton setigere4weed - Outcome
- not controllede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Weed Management in Mechanized-Sown, Zero-Till Dry-Seeded Rice”
e4“Some weed species, including eclipta and doveweed, were not controlled by the evaluated herbicides”
Claim · model-written summary
Additional herbicides should be evaluated and integrated with cultural weed management strategies to manage problematic weeds.
- Taxon
- RiceOryza sativat0
- Outcome
- evaluate additional herbicidese5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Weed Management in Mechanized-Sown, Zero-Till Dry-Seeded Rice”
e5“there is a need to evaluate additional herbicides and to integrate them with cultural weed management strategies”
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