Abstract
A field experiment was conducted at Kotwa, Azamgarh during rainy season of 2008 and 2009 to evaluate the comparative efficacy of various planting methods and weed control measures on weeds density growth, yield attributes, grain yield and economics of rice variety ‘Godawari’. Four main rice establishment techniques comprised with six sub-plot weed control practices was laid out in split plot design and replicated thrice. Echinichloa colona, E. crusgalli, Cyperus rotundus, C. difformis and Commelina benghalensis were predominant weed species. Among the rice establishment techniques, puddled transplanted practices proved best for reducing weed dry matter accumulation and produced significantly highest mean grain yield (3.89 t/ha) along with yield contributing parameters in comparison to rest planting methods. Direct drum-seeded rice under puddled condition were observed to be significantly superior and recorded 2.82 t/ha more mean grain yield over direct-dry seeding. Application of pretilachlor 750 g/ha pre-emergence followed by cyhalofop-butyl 60 g/ha post-emergence at 25 DAS/DAT was found quite effective against mixed weed flora which recorded statistically similar grain yield to that of repeated hand weedings. The integration of herbicide with tools, viz. pretilachlor 750 g/ha supplemented with mechanical weeding at 25 DAS/DAT again found equally effective in increasing the grain yield as pre-and post-emergence applied herbicides.
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Claims 8
Claim · model-written summary
Five weed species predominated in the rice experiment.
- Taxon
- rice
Oryza sativat0 - Interactor
- Echinichloa colonae0weed
- Outcome
- predominant weed speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Echinichloa colona, E. crusgalli, Cyperus rotundus, C. difformis and Commelina benghalensis were predominant weed species.”
t0“rice”
Claim · model-written summary
Puddled transplanting reduced weed dry matter accumulation relative to other planting methods.
- Taxon
- riceOryza sativat0
- Treatment
- puddled transplanted practicese0
- Outcome
- weed dry matter accumulatione0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“puddled transplanted practices proved best for reducing weed dry matter accumulation”
t0“rice”
Claim · model-written summary
Puddled transplanting produced the highest mean rice grain yield, 3.89 t/ha, among planting methods.
- Taxon
- riceOryza sativat0
- Treatment
- puddled transplanted practicese0
- Outcome
- mean grain yielde0
- Direction
- higheste0
- Value
- 3.89 t/hae0
- Comparator
- rest planting methodse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“puddled transplanted practices proved best for reducing weed dry matter accumulation and produced significantly highest mean grain yield (3.89 t/ha) along with yield contributing parameters in comparison to rest planting methods”
t0“rice”
Claim · model-written summary
Puddled transplanting produced the highest yield contributing parameters among planting methods.
- Taxon
- riceOryza sativat0
- Treatment
- puddled transplanted practicese1
- Outcome
- yield contributing parameterse0
- Direction
- higheste0
- Comparator
- rest planting methodse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“produced significantly highest mean grain yield (3.89 t/ha) along with yield contributing parameters in comparison to rest planting methods”
e1“puddled transplanted practices”
t0“rice”
Claim · model-written summary
Direct drum seeding under puddled conditions yielded 2.82 t/ha more than direct dry seeding.
- Taxon
- riceOryza sativae0
- Treatment
- Direct drum-seeded rice under puddled conditione0
- Outcome
- mean grain yielde0
- Direction
- moree0
- Value
- 2.82 t/hae0
- Comparator
- direct-dry seedinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Direct drum-seeded rice under puddled condition were observed to be significantly superior and recorded 2.82 t/ha more mean grain yield over direct-dry seeding”
Claim · model-written summary
Sequential pretilachlor and cyhalofop-butyl was effective against mixed weed flora.
- Taxon
- riceOryza sativat0
- Treatment
- pretilachlor 750 g/ha pre-emergence followed by cyhalofop-butyl 60 g/ha post-emergence at 25 DAS/DATe0
- Outcome
- mixed weed florae0
- Direction
- effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of pretilachlor 750 g/ha pre-emergence followed by cyhalofop-butyl 60 g/ha post-emergence at 25 DAS/DAT was found quite effective against mixed weed flora”
t0“rice”
Claim · model-written summary
Sequential pretilachlor and cyhalofop-butyl gave grain yield statistically similar to repeated hand weeding.
- Taxon
- riceOryza sativat0
- Treatment
- pretilachlor 750 g/ha pre-emergence followed by cyhalofop-butyl 60 g/ha post-emergence at 25 DAS/DATe0
- Outcome
- grain yielde0
- Direction
- similare0
- Comparator
- repeated hand weedingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pretilachlor 750 g/ha pre-emergence followed by cyhalofop-butyl 60 g/ha post-emergence at 25 DAS/DAT was found quite effective against mixed weed flora which recorded statistically similar grain yield to that of repeated hand weedings”
t0“rice”
Claim · model-written summary
Pretilachlor plus mechanical weeding increased grain yield as effectively as sequential herbicides.
- Taxon
- riceOryza sativat0
- Treatment
- pretilachlor 750 g/ha supplemented with mechanical weeding at 25 DAS/DATe0
- Outcome
- grain yielde0
- Direction
- increasinge0
- Comparator
- pre-and post-emergence applied herbicidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pretilachlor 750 g/ha supplemented with mechanical weeding at 25 DAS/DAT again found equally effective in increasing the grain yield as pre-and post-emergence applied herbicides”
t0“rice”
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586 papers in the same direction as this paper · 115 in the opposite direction · 27 reporting no difference from an alternative
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See all 729 papers →8 of 10 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.