Abstract
Weed is the major limitation to the adoption of aerobic rice system, the most potential water saving rice production technology. Herbicide is the appropriate tool to address this problem but suitable herbicide or their combination in controlling the predominant weed flora in this system is not established. The present study was conducted to evaluate the response of weed flora in the aerobic rice field to the sequential application of a single, proprietary or tank mixed herbicides in dry season 2008 and wet season 2008 to 2009. Results revealed that different weed species responded variably to herbicides tested. In the present study, the most dominant weeds were: Eleusine indica, Digitaria ascendense, Echinochloa colonum andCyperus iria. The most effective control of weed flora was obtained by Pretilachlor fb Bentazon/MCPA, Cyhalofob-butyl + Bensulfuron fb Bentazon/MCPA, Pendimethalin fb Bentazon/MCPA, Propanil/Benthiocarb fb Bentazon/MCPA, and Pretilachlor / Pendimethalin fb Bentazon/MCPA. The study concludes that the combinations of herbicides dryer broader spectrum of weed control and the herbicide selection should be based on the target weed species in addition to their broader category of grass, sedge and broadleaf for planning an effective weed control program for aerobic rice. Key words: Herbicide combination, weed abundance, weed control, sedge, grass, broadleaf weeds, dry seeded rice.
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Claims 10
Claim · model-written summary
Eleusine indica was among the most dominant weeds in aerobic rice.
- Taxon
- aerobic ricet0
- Interactor
- Eleusine indica
Eleusine indicae0weed - Outcome
- most dominant weedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most dominant weeds were: Eleusine indica, Digitaria ascendense, Echinochloa colonum andCyperus iria”
t0“aerobic rice”
Claim · model-written summary
Digitaria ascendense was among the most dominant weeds in aerobic rice.
Verbatim
e0“the most dominant weeds were: Eleusine indica, Digitaria ascendense, Echinochloa colonum andCyperus iria”
t0“aerobic rice”
Claim · model-written summary
Echinochloa colonum was among the most dominant weeds in aerobic rice.
- Taxon
- aerobic ricet0
- Interactor
- Echinochloa colonum
Echinochloa colonae0weed - Outcome
- most dominant weedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most dominant weeds were: Eleusine indica, Digitaria ascendense, Echinochloa colonum andCyperus iria”
t0“aerobic rice”
Claim · model-written summary
Cyperus iria was among the most dominant weeds in aerobic rice.
- Taxon
- aerobic ricet0
- Interactor
- Cyperus iria
.jpg?width=60)
Cyperus iriae0weed - Outcome
- most dominant weedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“the most dominant weeds were: Eleusine indica, Digitaria ascendense, Echinochloa colonum andCyperus iria”
t0“aerobic rice”
Claim · model-written summary
Pretilachlor followed by Bentazon/MCPA gave effective weed flora control.
- Taxon
- aerobic ricet0
- Treatment
- Pretilachlor fb Bentazon/MCPAe0
- Outcome
- control of weed florae0
- Direction
- most effectivee0
Not reportedComparator
Verbatim
e0“The most effective control of weed flora was obtained by Pretilachlor fb Bentazon/MCPA, Cyhalofob-butyl + Bensulfuron fb Bentazon/MCPA, Pendimethalin fb Bentazon/MCPA, Propanil/Benthiocarb fb Bentazon/MCPA, and Pretilachlor / Pendimethalin fb Bentazon/MCPA”
t0“aerobic rice”
Claim · model-written summary
Cyhalofob-butyl plus Bensulfuron followed by Bentazon/MCPA gave effective weed flora control.
- Taxon
- aerobic ricet0
- Treatment
- Cyhalofob-butyl + Bensulfuron fb Bentazon/MCPAe0
- Outcome
- control of weed florae0
- Direction
- most effectivee0
Not reportedComparator
Verbatim
e0“The most effective control of weed flora was obtained by Pretilachlor fb Bentazon/MCPA, Cyhalofob-butyl + Bensulfuron fb Bentazon/MCPA, Pendimethalin fb Bentazon/MCPA, Propanil/Benthiocarb fb Bentazon/MCPA, and Pretilachlor / Pendimethalin fb Bentazon/MCPA”
t0“aerobic rice”
Claim · model-written summary
Pendimethalin followed by Bentazon/MCPA gave effective weed flora control.
- Taxon
- aerobic ricet0
- Treatment
- Pendimethalin fb Bentazon/MCPAe0
- Outcome
- control of weed florae0
- Direction
- most effectivee0
Not reportedComparator
Verbatim
e0“The most effective control of weed flora was obtained by Pretilachlor fb Bentazon/MCPA, Cyhalofob-butyl + Bensulfuron fb Bentazon/MCPA, Pendimethalin fb Bentazon/MCPA, Propanil/Benthiocarb fb Bentazon/MCPA, and Pretilachlor / Pendimethalin fb Bentazon/MCPA”
t0“aerobic rice”
Claim · model-written summary
Propanil/Benthiocarb followed by Bentazon/MCPA gave effective weed flora control.
- Taxon
- aerobic ricet0
- Treatment
- Propanil/Benthiocarb fb Bentazon/MCPAe0
- Outcome
- control of weed florae0
- Direction
- most effectivee0
Not reportedComparator
Verbatim
e0“The most effective control of weed flora was obtained by Pretilachlor fb Bentazon/MCPA, Cyhalofob-butyl + Bensulfuron fb Bentazon/MCPA, Pendimethalin fb Bentazon/MCPA, Propanil/Benthiocarb fb Bentazon/MCPA, and Pretilachlor / Pendimethalin fb Bentazon/MCPA”
t0“aerobic rice”
Claim · model-written summary
Pretilachlor/Pendimethalin followed by Bentazon/MCPA gave effective weed flora control.
- Taxon
- aerobic ricet0
- Treatment
- Pretilachlor / Pendimethalin fb Bentazon/MCPAe0
- Outcome
- control of weed florae0
- Direction
- most effectivee0
Not reportedComparator
Verbatim
e0“The most effective control of weed flora was obtained by Pretilachlor fb Bentazon/MCPA, Cyhalofob-butyl + Bensulfuron fb Bentazon/MCPA, Pendimethalin fb Bentazon/MCPA, Propanil/Benthiocarb fb Bentazon/MCPA, and Pretilachlor / Pendimethalin fb Bentazon/MCPA”
t0“aerobic rice”
Claim · model-written summary
The authors recommend selecting herbicides by target weed species as well as broad weed category.
Verbatim
e0“herbicide selection should be based on the target weed species in addition to their broader category of grass, sedge and broadleaf”
t0“aerobic rice”
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