Abstract
A field study was conducted at Chiplima and Sambalpur under West Central Table Land Zone of Odisha during the winter (Rabi) seasons of 2013 and 2014 to evaluate different integrated weed management practices under modified water regimes in rice grown under System of Rice Intensification. Application of 5 cm depth of irrigation water before the day of weeding operation was effective in increasing yield significantly (4.72 t/ha) over saturation moisture regime (3.48 t/ha) due to low weed density, weed dry weight and highest number of ear bearing tillers per plant (24) and filled grains/panicle (72). Out of four levels of different weed management systems tested, the application of pretilachlor 750 g/ha (preemergence) fb chlorimuron-ethyl + metsulfuron-methyl 4 g/ha (post-emergence) recorded minimum weed density and weed dry weight, higher weed control efficiency and significantly higher grain yield of 5.45 t/ha. The same treatment also recorded highest net return (? 41, 441/ha) and highest B: C ratio (2.17).
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Claims 8
Claim · model-written summary
Irrigating 5 cm depth before weeding significantly increased rice yield (4.72 t/ha) over saturation moisture regime (3.48 t/ha).
- Taxon
- rice
Oryza sativae7 - Treatment
- 5 cm depth of irrigation water before the day of weeding operatione0
- Outcome
- yielde0
- Direction
- increasinge0
- Value
- 4.72 t/hae0
- Qualifier
- 3.48 t/hae0
- Comparator
- saturation moisture regimee0
- Setting
- Chiplima and Sambalpure6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“in rice grown under System of Rice Intensification”
e0“Application of 5 cm depth of irrigation water before the day of weeding operation was effective in increasing yield significantly (4.72 t/ha) over saturation moisture regime (3.48 t/ha)”
e6“A field study was conducted at Chiplima and Sambalpur”
Claim · model-written summary
The 5 cm irrigation treatment gave the highest number of ear bearing tillers per plant (24).
- Taxon
- riceOryza sativae7
- Treatment
- 5 cm depth of irrigation watere0
- Outcome
- ear bearing tillers per plante1
- Direction
- higheste1
- Value
- 24e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“in rice grown under System of Rice Intensification”
e0“Application of 5 cm depth of irrigation water before the day of weeding operation was effective in increasing yield significantly (4.72 t/ha) over saturation moisture regime (3.48 t/ha)”
e1“highest number of ear bearing tillers per plant (24) and filled grains/panicle (72)”
Claim · model-written summary
The 5 cm irrigation treatment gave the highest number of filled grains per panicle (72).
- Taxon
- riceOryza sativae7
- Treatment
- 5 cm depth of irrigation watere0
- Outcome
- filled grains/paniclee1
- Direction
- higheste1
- Value
- 72e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“in rice grown under System of Rice Intensification”
e0“Application of 5 cm depth of irrigation water before the day of weeding operation was effective in increasing yield significantly (4.72 t/ha) over saturation moisture regime (3.48 t/ha)”
e1“highest number of ear bearing tillers per plant (24) and filled grains/panicle (72)”
Claim · model-written summary
Pretilachlor followed by chlorimuron-ethyl plus metsulfuron-methyl gave the minimum weed density and weed dry weight among the weed management systems tested.
- Taxon
- riceOryza sativae7
- Treatment
- pretilachlor 750 g/ha (preemergence) fb chlorimuron-ethyl + metsulfuron-methyl 4 g/ha (post-emergence)e2
- Interactor
- weede2weed
- Outcome
- weed density and weed dry weighte2
- Direction
- minimume2
- Comparator
- four levels of different weed management systems testede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“in rice grown under System of Rice Intensification”
e2“the application of pretilachlor 750 g/ha (preemergence) fb chlorimuron-ethyl + metsulfuron-methyl 4 g/ha (post-emergence) recorded minimum weed density and weed dry weight”
e3“Out of four levels of different weed management systems tested”
Claim · model-written summary
The same pretilachlor-based weed management gave higher weed control efficiency than the other systems.
- Taxon
- riceOryza sativae7
- Treatment
- pretilachlor 750 g/ha (preemergence) fb chlorimuron-ethyl + metsulfuron-methyl 4 g/ha (post-emergence)e2
- Outcome
- weed control efficiencye4
- Direction
- highere4
- Comparator
- four levels of different weed management systems testede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“in rice grown under System of Rice Intensification”
e2“the application of pretilachlor 750 g/ha (preemergence) fb chlorimuron-ethyl + metsulfuron-methyl 4 g/ha (post-emergence) recorded minimum weed density and weed dry weight”
e3“Out of four levels of different weed management systems tested”
e4“higher weed control efficiency and significantly higher grain yield of 5.45 t/ha”
Claim · model-written summary
The same weed management gave significantly higher grain yield of 5.45 t/ha.
- Taxon
- riceOryza sativae7
- Treatment
- pretilachlor 750 g/ha (preemergence) fb chlorimuron-ethyl + metsulfuron-methyl 4 g/ha (post-emergence)e2
- Outcome
- grain yielde4
- Direction
- significantly highere4
- Value
- 5.45 t/hae4
- Comparator
- four levels of different weed management systems testede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“in rice grown under System of Rice Intensification”
e2“the application of pretilachlor 750 g/ha (preemergence) fb chlorimuron-ethyl + metsulfuron-methyl 4 g/ha (post-emergence) recorded minimum weed density and weed dry weight”
e3“Out of four levels of different weed management systems tested”
e4“higher weed control efficiency and significantly higher grain yield of 5.45 t/ha”
Claim · model-written summary
The same weed management gave the highest net return (? 41, 441/ha).
- Taxon
- riceOryza sativae7
- Treatment
- pretilachlor 750 g/ha (preemergence) fb chlorimuron-ethyl + metsulfuron-methyl 4 g/ha (post-emergence)e2
- Outcome
- net returne5
- Direction
- higheste5
- Value
- ? 41, 441/hae5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“in rice grown under System of Rice Intensification”
e2“the application of pretilachlor 750 g/ha (preemergence) fb chlorimuron-ethyl + metsulfuron-methyl 4 g/ha (post-emergence) recorded minimum weed density and weed dry weight”
e5“The same treatment also recorded highest net return (? 41, 441/ha)”
Claim · model-written summary
The same weed management gave the highest B:C ratio (2.17).
- Taxon
- riceOryza sativae7
- Treatment
- pretilachlor 750 g/ha (preemergence) fb chlorimuron-ethyl + metsulfuron-methyl 4 g/ha (post-emergence)e2
- Outcome
- B: C ratioe6
- Direction
- higheste6
- Value
- 2.17e6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“in rice grown under System of Rice Intensification”
e2“the application of pretilachlor 750 g/ha (preemergence) fb chlorimuron-ethyl + metsulfuron-methyl 4 g/ha (post-emergence) recorded minimum weed density and weed dry weight”
e6“highest B: C ratio (2.17)”
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See all 802 papers →8 of 9 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.