Abstract
A field experiment was conducted at Central Research Farm, Gayeshpur, Nadia, West Bengal, India during the Kharif (rainy) seasons of 2019-20 and 2020-21 to evaluate bio-efficacy and phytotoxicity of herbicide pretilachlor 50% EC in transplanted rice and its residual effect on utera/paira (follow up) crop lathyrus. The experiment was placed in randomized complete block design comprising 10 treatments (pretilachlor 50% EC 375, 500, 625, 750, 875 g/ha, pendimethalin 30% EC 1000, 1500 g/ha, Butachlor 50% EC 1250 g/ha, hand weeding at 15 and 30 days after transplanting and unweeded control) and replicated thrice. Pooled results revealed that application of pretilachlor 50% EC 625 g/ha was superior over pendimethalin and butachlor remained equally effective as hand weeding in ensuring high weed control efficiency. Consequently, 4.38 and 4.98 t/ha of grains and straw yields, respectively were obtained at pretilachlor 50% EC 625 g/ha. Further, no phytotoxic effect on crop as well as on soil health was observed under application of that herbicide. Performance of paira crop lathyrus did not get hampered due to herbicidal applications in rice due to dissipation of toxicity from soil. Therefore, early post-emergence application of pretilachlor 50% EC 625 g/ha can be safely recommended for transplanted Kharif rice cultivation in Gangetic plains of West Bengal.
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Claims 6
Claim · model-written summary
Pretilachlor at 625 g/ha gave superior weed control to pendimethalin and butachlor.
- Taxon
- rice
Oryza sativat0 - Treatment
- pretilachlor 50% EC 625 g/hae0
- Interactor
- weede0weed
- Outcome
- weed control efficiencye0
- Direction
- superiore0
- Comparator
- pendimethalin and butachlore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of pretilachlor 50% EC 625 g/ha was superior over pendimethalin and butachlor remained equally effective as hand weeding in ensuring high weed control efficiency.”
t0“transplanted rice”
Claim · model-written summary
Rice grain yield under pretilachlor was 4.38 t/ha.
- Taxon
- riceOryza sativat0
- Treatment
- pretilachlor 50% EC 625 g/hae0
- Outcome
- grainse0
- Value
- 4.38e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“4.38 and 4.98 t/ha of grains and straw yields, respectively were obtained at pretilachlor 50% EC 625 g/ha.”
t0“transplanted rice”
Claim · model-written summary
Rice straw yield under pretilachlor was 4.98 t/ha.
- Taxon
- riceOryza sativat0
- Treatment
- pretilachlor 50% EC 625 g/hae0
- Outcome
- straw yieldse0
- Value
- 4.98 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“4.38 and 4.98 t/ha of grains and straw yields, respectively were obtained at pretilachlor 50% EC 625 g/ha.”
t0“transplanted rice”
Claim · model-written summary
The herbicide caused no observed crop phytotoxicity.
- Taxon
- riceOryza sativat0
- Treatment
- that herbicidee0
- Outcome
- phytotoxic effect on crope0
- Direction
- noe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no phytotoxic effect on crop as well as on soil health was observed under application of that herbicide.”
t0“transplanted rice”
Claim · model-written summary
Rice herbicide applications did not hamper subsequent lathyrus performance.
- Treatment
- herbicidal applications in ricee0
- Outcome
- Performance of paira crop lathyruse0
- Direction
- did not get hamperede0
LathyrusNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Performance of paira crop lathyrus did not get hampered due to herbicidal applications in rice due to dissipation of toxicity from soil.”
Claim · model-written summary
The authors recommend early post-emergence pretilachlor for Kharif rice in West Bengal.
- Taxon
- riceOryza sativae0
- Outcome
- early post-emergence application of pretilachlor 50% EC 625 g/hae0
- Setting
- Gangetic plains of West Bengale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early post-emergence application of pretilachlor 50% EC 625 g/ha can be safely recommended for transplanted Kharif rice cultivation in Gangetic plains of West Bengal.”
The same questions in other papers
Pretilachlor · weed · Oryza sativa (rice)Results differ
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- negative
- negative
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See all 53 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.