Abstract
A trial was conducted at the Gurabo Substation, Gurabo, Puerto Rico, to evaluate different methods (biological, manual and chemical) for controlling jointvetch (Aeachynomene sensitiva Sw.) and waterprimrose (Ludwigia erecta (L.) H, Hara) in rice. The sequential applications of either propanil [N-(3,4-dichlorophenyl) propanamide] or thiobencarb [S-(4- chlorophenyl) methyl diethylcarbamothioate] as an early postemergence, followed by a mixture of [(2,4-dlchlorophenoxy) acetic acld] and bentazon [3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4-(3H) one 2,2-dioxide] were found to be the two best treatments. Both treatments outyielded all others except the weeded check. However, no significant economic gain in terms of gross income and net return was evident for the aforementioned treatments. The sequential application of propanil followed by CollegoTM (a mycoherbicide) gave only fair weed control and produced a poor yield with low economic gain. Manual weeding produced the higher yield, but with the least net return due to the high cost of weeding.
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Claims 8
Claim · model-written summary
Sequential propanil application followed by a 2,4-D and bentazon mixture was among the two best rice weed-control treatments and outyielded all others except the weeded check
- Taxon
- rice
Oryza sativae0 - Treatment
- sequential applications of either propanile1
- Interactor
- jointvetche0weed
- Second interactor
- waterprimrosee0weed
- Outcome
- yielde2
- Direction
- outyieldede2
- Qualifier
- except the weeded checke2
- Comparator
- all otherse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate different methods (biological, manual and chemical) for controlling jointvetch (Aeachynomene sensitiva Sw.) and waterprimrose (Ludwigia erecta (L.) H, Hara) in rice”
e1“The sequential applications of either propanil [N-(3,4-dichlorophenyl) propanamide] or thiobencarb [S-(4- chlorophenyl) methyl diethylcarbamothioate] as an early postemergence, followed by a mixture of [(2,4-dlchlorophenoxy) acetic acld] and bentazon [3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4-(3H) one 2,2-dioxide] were found to be the two best treatments”
e2“Both treatments outyielded all others except the weeded check”
Claim · model-written summary
Sequential thiobencarb application followed by a 2,4-D and bentazon mixture was among the two best rice weed-control treatments and outyielded all others except the weeded check
- Taxon
- riceOryza sativae0
- Treatment
- thiobencarbe1
- Interactor
- jointvetche0weed
- Second interactor
- waterprimrosee0weed
- Outcome
- yielde2
- Direction
- outyieldede2
- Qualifier
- except the weeded checke2
- Comparator
- all otherse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate different methods (biological, manual and chemical) for controlling jointvetch (Aeachynomene sensitiva Sw.) and waterprimrose (Ludwigia erecta (L.) H, Hara) in rice”
e1“The sequential applications of either propanil [N-(3,4-dichlorophenyl) propanamide] or thiobencarb [S-(4- chlorophenyl) methyl diethylcarbamothioate] as an early postemergence, followed by a mixture of [(2,4-dlchlorophenoxy) acetic acld] and bentazon [3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4-(3H) one 2,2-dioxide] were found to be the two best treatments”
e2“Both treatments outyielded all others except the weeded check”
Claim · model-written summary
The best rice weed-control treatments gave no significant economic gain in gross income or net return
- Taxon
- riceOryza sativae0
- Interactor
- jointvetche0weed
- Second interactor
- waterprimrosee0weed
- Outcome
- economic gain in terms of gross income and net returne4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate different methods (biological, manual and chemical) for controlling jointvetch (Aeachynomene sensitiva Sw.) and waterprimrose (Ludwigia erecta (L.) H, Hara) in rice”
e4“no significant economic gain in terms of gross income and net return was evident for the aforementioned treatments”
Claim · model-written summary
Sequential propanil followed by CollegoTM gave only fair weed control in rice
- Taxon
- riceOryza sativae0
- Treatment
- sequential application of propanil followed by CollegoTMe3
- Interactor
- jointvetche0weed
- Second interactor
- waterprimrosee0weed
- Outcome
- weed controle3
- Qualifier
- only faire3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate different methods (biological, manual and chemical) for controlling jointvetch (Aeachynomene sensitiva Sw.) and waterprimrose (Ludwigia erecta (L.) H, Hara) in rice”
e3“The sequential application of propanil followed by CollegoTM (a mycoherbicide) gave only fair weed control and produced a poor yield with low economic gain”
Claim · model-written summary
Sequential propanil followed by CollegoTM produced a lower yield in rice
- Taxon
- riceOryza sativae0
- Treatment
- sequential application of propanil followed by CollegoTMe3
- Interactor
- jointvetche0weed
- Second interactor
- waterprimrosee0weed
- Outcome
- yielde3
- Direction
- lowerinferrede3
- Qualifier
- poor yielde3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate different methods (biological, manual and chemical) for controlling jointvetch (Aeachynomene sensitiva Sw.) and waterprimrose (Ludwigia erecta (L.) H, Hara) in rice”
e3“The sequential application of propanil followed by CollegoTM (a mycoherbicide) gave only fair weed control and produced a poor yield with low economic gain”
Claim · model-written summary
Sequential propanil followed by CollegoTM produced a lower economic gain in rice
- Taxon
- riceOryza sativae0
- Treatment
- sequential application of propanil followed by CollegoTMe3
- Interactor
- jointvetche0weed
- Second interactor
- waterprimrosee0weed
- Outcome
- economic gaine3
- Direction
- lowerinferrede3
- Qualifier
- low economic gaine3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate different methods (biological, manual and chemical) for controlling jointvetch (Aeachynomene sensitiva Sw.) and waterprimrose (Ludwigia erecta (L.) H, Hara) in rice”
e3“The sequential application of propanil followed by CollegoTM (a mycoherbicide) gave only fair weed control and produced a poor yield with low economic gain”
Claim · model-written summary
Manual weeding produced the higher rice yield
- Taxon
- riceOryza sativae0
- Treatment
- Manual weedinge5
- Interactor
- jointvetche0weed
- Second interactor
- waterprimrosee0weed
- Outcome
- yielde5
- Direction
- highere5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate different methods (biological, manual and chemical) for controlling jointvetch (Aeachynomene sensitiva Sw.) and waterprimrose (Ludwigia erecta (L.) H, Hara) in rice”
e5“Manual weeding produced the higher yield, but with the least net return due to the high cost of weeding”
Claim · model-written summary
Manual weeding gave the lowest net return in rice because of the high cost of weeding
- Taxon
- riceOryza sativae0
- Treatment
- Manual weedinge5
- Interactor
- jointvetche0weed
- Second interactor
- waterprimrosee0weed
- Outcome
- net returne5
- Direction
- lowerinferrede5
- Qualifier
- due to the high cost of weedinge5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to evaluate different methods (biological, manual and chemical) for controlling jointvetch (Aeachynomene sensitiva Sw.) and waterprimrose (Ludwigia erecta (L.) H, Hara) in rice”
e5“Manual weeding produced the higher yield, but with the least net return due to the high cost of weeding”
The same questions in other papers
Thiobencarb · yield · Oryza sativa (rice)Results differ
18 papers in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
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See all 24 papers →propanil · yield · Oryza sativa (rice)Results differ
28 papers in the same direction as this paper · 9 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- no effect
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See all 40 papers →herbicide · yield · Oryza sativa (rice)Positive and negative results
724 papers in the same direction as this paper · 57 in the opposite direction · 20 reporting no difference from an alternative
- no effect
- negative
- negative
798 papers more in this group
See all 802 papers →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.