Abstract
Field experiments were carried out in two locations, viz. Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai and ICAR-Central Island Agricultural Research Institute, Port Blair, Andaman and Nicobar Islands during Kharif, 2016 and 2017 respectively to study the effect of entrapped pre-emergence oxadiargyl herbicide on the growth and yield of rice under various agro ecosystems. Weed control measures significantly reduced the density and dry weight of weeds in both the ecosystems. In mainland ecosystem, at 20 DAT, the highest reduction in weed density (61.8%) was noticed with the application of oxadiargyl encapsulated with starch which was comparable with the application of butachlor at 1.25 kg/ha on 3 DAT fb hand weeding on 40 DAT (60.8%). Whereas, under island ecosystem, the lowest total weed density (78.2%) was observed with the application of oxadiargyl loaded in zeolite which entrapped herbicides have increased sorption and decreased the dissipation of herbicide in soil which helps to release herbicide slowly through entire season for effective weed control. Application of butachlor at 1.25 kg/ha on 3 DAT fb hand weeding on 40 DAT recorded significantly higher number of productive tillers/m2 followed by the application of oxadiargyl loading with zeolite on 3 DAT. Weed free check has recorded significantly higher grain and straw yield in both ecosystems. The increase in grain yield with weed control treatment was ranged from 1.22 to 2.97 t/ha and 1.07 to 3.15 t/ha in main and island ecosystem, respectively compared to weedy check. The highest straw yield of 59.3 and 72.4% was recorded under weed free check as compared to weedy check in main and island ecosystem, respectively.
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Claims 12
Claim · model-written summary
Weed control significantly reduced weed density in both ecosystems.
- Taxon
- rice
Oryza sativae1 - Treatment
- Weed control measurese0
- Interactor
- weedse0weed
- Outcome
- densitye0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed control measures significantly reduced the density and dry weight of weeds in both the ecosystems.”
e1“Field experiments were carried out in two locations, viz. Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai and ICAR-Central Island Agricultural Research Institute, Port Blair, Andaman and Nicobar Islands during Kharif, 2016 and 2017 respectively to study the effect of entrapped pre-emergence oxadiargyl herbicide on the growth and yield of rice under various agro ecosystems.”
Claim · model-written summary
Weed control significantly reduced weed dry weight in both ecosystems.
- Taxon
- riceOryza sativae1
- Treatment
- Weed control measurese0
- Interactor
- weedse0weed
- Outcome
- dry weight of weedse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed control measures significantly reduced the density and dry weight of weeds in both the ecosystems.”
e1“Field experiments were carried out in two locations, viz. Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai and ICAR-Central Island Agricultural Research Institute, Port Blair, Andaman and Nicobar Islands during Kharif, 2016 and 2017 respectively to study the effect of entrapped pre-emergence oxadiargyl herbicide on the growth and yield of rice under various agro ecosystems.”
Claim · model-written summary
Starch-encapsulated oxadiargyl reduced mainland weed density by 61.8%.
- Taxon
- riceOryza sativae1
- Treatment
- application of oxadiargyl encapsulated with starche0
- Interactor
- weede0weed
- Outcome
- weed densitye0
- Direction
- reductione0
- Value
- 61.8%e0
- Setting
- mainland ecosysteme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In mainland ecosystem, at 20 DAT, the highest reduction in weed density (61.8%) was noticed with the application of oxadiargyl encapsulated with starch which was comparable with the application of butachlor at 1.25 kg/ha on 3 DAT fb hand weeding on 40 DAT (60.8%).”
e1“growth and yield of rice under various agro ecosystems.”
Claim · model-written summary
Butachlor plus hand weeding reduced mainland weed density by 60.8%.
- Taxon
- riceOryza sativae1
- Treatment
- application of butachlor at 1.25 kg/ha on 3 DAT fb hand weeding on 40 DATe0
- Interactor
- weede0weed
- Outcome
- weed densitye0
- Direction
- reductione0
- Value
- 60.8%e0
- Setting
- mainland ecosysteme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In mainland ecosystem, at 20 DAT, the highest reduction in weed density (61.8%) was noticed with the application of oxadiargyl encapsulated with starch which was comparable with the application of butachlor at 1.25 kg/ha on 3 DAT fb hand weeding on 40 DAT (60.8%).”
e1“growth and yield of rice under various agro ecosystems.”
Claim · model-written summary
Zeolite-loaded oxadiargyl had the lowest island weed density, reported as 78.2%.
- Taxon
- riceOryza sativae1
- Treatment
- application of oxadiargyl loaded in zeolitee0
- Interactor
- weede0weed
- Outcome
- total weed densitye0
- Direction
- loweste0
- Value
- 78.2%e0
- Setting
- island ecosysteme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Whereas, under island ecosystem, the lowest total weed density (78.2%) was observed with the application of oxadiargyl loaded in zeolite which entrapped herbicides have increased sorption and decreased the dissipation of herbicide in soil which helps to release herbicide slowly through entire season for effective weed control.”
e1“growth and yield of rice under various agro ecosystems.”
Claim · model-written summary
Butachlor plus hand weeding produced significantly more productive rice tillers.
- Taxon
- riceOryza sativae1
- Treatment
- Application of butachlor at 1.25 kg/ha on 3 DAT fb hand weeding on 40 DATe0
- Outcome
- number of productive tillers/m2e0
- Direction
- highere0
- Comparator
- application of oxadiargyl loading with zeolite on 3 DATe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of butachlor at 1.25 kg/ha on 3 DAT fb hand weeding on 40 DAT recorded significantly higher number of productive tillers/m2 followed by the application of oxadiargyl loading with zeolite on 3 DAT.”
e1“growth and yield of rice under various agro ecosystems.”
Claim · model-written summary
Weed-free plots had significantly higher grain yield.
- Taxon
- riceOryza sativae1
- Treatment
- Weed free checke0
- Outcome
- grain and straw yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed free check has recorded significantly higher grain and straw yield in both ecosystems.”
e1“growth and yield of rice under various agro ecosystems.”
Claim · model-written summary
Weed-free plots had significantly higher straw yield.
- Taxon
- riceOryza sativae1
- Treatment
- Weed free checke0
- Outcome
- grain and straw yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed free check has recorded significantly higher grain and straw yield in both ecosystems.”
e1“growth and yield of rice under various agro ecosystems.”
Claim · model-written summary
Weed control increased grain yield by 1.22 to 2.97 t/ha in the main ecosystem.
- Taxon
- riceOryza sativae1
- Treatment
- weed control treatmente0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 1.22 to 2.97 t/hae0
- Comparator
- weedy checke0
- Setting
- maine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in grain yield with weed control treatment was ranged from 1.22 to 2.97 t/ha and 1.07 to 3.15 t/ha in main and island ecosystem, respectively compared to weedy check.”
e1“growth and yield of rice under various agro ecosystems.”
Claim · model-written summary
Weed control increased grain yield by 1.07 to 3.15 t/ha in the island ecosystem.
- Taxon
- riceOryza sativae1
- Treatment
- weed control treatmente0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 1.07 to 3.15 t/hae0
- Comparator
- weedy checke0
- Setting
- islande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in grain yield with weed control treatment was ranged from 1.22 to 2.97 t/ha and 1.07 to 3.15 t/ha in main and island ecosystem, respectively compared to weedy check.”
e1“growth and yield of rice under various agro ecosystems.”
Claim · model-written summary
Weed-free plots had the highest straw yield in the main ecosystem (59.3).
- Taxon
- riceOryza sativae1
- Treatment
- weed free checke0
- Outcome
- straw yielde0
- Direction
- higheste0
- Value
- 59.3e0
- Comparator
- weedy checke0
- Setting
- maine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest straw yield of 59.3 and 72.4% was recorded under weed free check as compared to weedy check in main and island ecosystem, respectively.”
e1“growth and yield of rice under various agro ecosystems.”
Claim · model-written summary
Weed-free plots had the highest straw yield in the island ecosystem (72.4%).
- Taxon
- riceOryza sativae1
- Treatment
- weed free checke0
- Outcome
- straw yielde0
- Direction
- higheste0
- Value
- 72.4%e0
- Comparator
- weedy checke0
- Setting
- islande0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest straw yield of 59.3 and 72.4% was recorded under weed free check as compared to weedy check in main and island ecosystem, respectively.”
e1“growth and yield of rice under various agro ecosystems.”
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