Abstract
A field experiment was conducted at Agricultural College and Research Institute, Madurai during winter (rabl) seasons of 1998-99 and 1999-2000, to study the effect of integrated weed-management practices on weed control and yield of wet-seeded rice. Glyphosate (1.5 kg a.i./ha) was applied at pre-sowing stage alone or in combination with pre-emergence application of pretilachlor +Safener (0.4 kg a.i./ha) and early post-emergence application of butanil (3 litresfha) along with manual weeding. It was compared with weed-free check and unweeded control. All the weed-management practices significantly reduced the weed density of grasses, sedges and broad-leaf weeds, resulting in their reduced dry weight. Pre-sowing application of glyphosate (1.5 kg a.i./ha) effectively reduced the sedges, when combined with pre-emergence application of pretilachlor + Safner (0.4 a.i./ha) followed by two hand-weedings at 25 and 45 days after sowing. These recorded lesser weed density, dry weight and higher weed-control efficiency, resulting in higher grain yield (58.73 qfha). Bioassay showed no residual effect of the herbicides applied to rice (Oryza sativa L.) on the stand of succeeding crop of blackgram [Phaseolus mungo (L.) Wilczek].
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Claims 6
Claim · model-written summary
Weed-management practices significantly reduced weed density across grasses, sedges and broad-leaf weeds.
- Taxon
- wet-seeded ricet0
- Treatment
- weed-management practicese0
- Interactor
- grasses, sedges and broad-leaf weedse0weed
- Outcome
- weed density of grasses, sedges and broad-leaf weedse0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“All the weed-management practices significantly reduced the weed density of grasses, sedges and broad-leaf weeds, resulting in their reduced dry weight.”
t0“wet- seeded rice”
Claim · model-written summary
Weed-management practices reduced weed dry weight.
- Taxon
- wet-seeded ricet0
- Treatment
- weed-management practicese0
- Interactor
- grasses, sedges and broad-leaf weedse0weed
- Outcome
- dry weighte0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“All the weed-management practices significantly reduced the weed density of grasses, sedges and broad-leaf weeds, resulting in their reduced dry weight.”
t0“wet- seeded rice”
Claim · model-written summary
The glyphosate combination effectively reduced sedges.
- Taxon
- wet-seeded ricet0
- Treatment
- Pre-sowing application of glyphosate (1.5 kg a.i./ha)e0
- Outcome
- sedgese0
- Direction
- reducede0
- Qualifier
- combined with pre-emergence application of pretilachlor + Safner (0.4 a.i./ha) followed by two hand-weedings at 25 and 45 days after sowinge0
CarexNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-sowing application of glyphosate (1.5 kg a.i./ha) effectively reduced the sedges, when combined with pre-emergence application of pretilachlor + Safner (0.4 a.i./ha) followed by two hand-weedings at 25 and 45 days after sowing.”
t0“wet- seeded rice”
Claim · model-written summary
The combined practices produced lower weed density and dry weight and higher weed-control efficiency.
- Taxon
- rice
Oryza sativat0 - Treatment
- weed-management practicese1
- Interactor
- weede0weed
- Outcome
- weed density, dry weight and higher weed-control efficiencye0
- Direction
- lessere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These recorded lesser weed density, dry weight and higher weed-control efficiency, resulting in higher grain yield (58.73 qfha).”
t0“rice”
e1“integrated weed-management practices”
Claim · model-written summary
The combined practices produced higher grain yield of 58.73 qfha.
- Taxon
- riceOryza sativat0
- Treatment
- weed-management practicese1
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 58.73 qfhae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These recorded lesser weed density, dry weight and higher weed-control efficiency, resulting in higher grain yield (58.73 qfha).”
t0“rice”
e1“integrated weed-management practices”
Claim · model-written summary
The applied herbicides showed no residual effect on the succeeding blackgram stand.
- Taxon
- blackgram
Vigna mungoe0 - Treatment
- herbicides applied to ricee0
- Outcome
- stand of succeeding crop of blackgrame0
- Direction
- no residual effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bioassay showed no residual effect of the herbicides applied to rice (Oryza sativa L.) on the stand of succeeding crop of blackgram [Phaseolus mungo (L.) Wilczek].”
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glyphosate · Carex · Oryza sativa (rice)Results agree
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724 papers in the same direction as this paper · 57 in the opposite direction · 20 reporting no difference from an alternative
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See all 802 papers →herbicide · organism · Vigna mungo (black gram)Results agree
1 paper in the same direction as this paper
- no effect
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.