Abstract
This weed management investigation was carried out at the Zonal Agricultural Research Station (ZARS), Bangalore, during the summers of 2017 and 2018 to standardize agrotechniques for weed management of rice grown under aerobic conditions. The experiment was laid out in a randomized complete block design with eleven treatments replicated thrice. It consisted of two pre-emergence herbicides and one early post-emergence herbicide, the stale seedbed technique, mulching, hand weeding and intercultivation which was compared to the weedy check. The results showed that pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ha -1 as PE fb bispyribac sodium 10% SC at 30 ml ha -1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ha -1 , respectively), plant height (58.42 cm), rice total dry matter production (149.84 g plant -1 ), productive tillers hill -1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%). This practice could be recommended to farmers growing aerobic rice under these climatic conditions.
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Claims 14
Claim · model-written summary
The herbicide sequence gave performed better rice grain (5,800 kg ha -1) than the weedy check.
- Taxon
- rice (Oryza sativa L.)
Oryza sativat0e0e1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ha -1 as PE fb bispyribac sodium 10% SC at 30 ml ha -1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ha -1 , respectively), plant height (58.42 cm), rice total dry matter production (149.84 g plant -1 ), productive tillers hill -1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%)”
e1“weedy check”
e2“Zonal Agricultural Research Station (ZARS), Bangalore”
Claim · model-written summary
The herbicide sequence gave performed better straw (9,786 kg ha -1) than the weedy check.
- Taxon
- rice (Oryza sativa L.)Oryza sativat0e0e1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ha -1 as PE fb bispyribac sodium 10% SC at 30 ml ha -1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ha -1 , respectively), plant height (58.42 cm), rice total dry matter production (149.84 g plant -1 ), productive tillers hill -1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%)”
e1“weedy check”
e2“Zonal Agricultural Research Station (ZARS), Bangalore”
Claim · model-written summary
The herbicide sequence gave performed better plant height (58.42 cm) than the weedy check.
- Taxon
- rice (Oryza sativa L.)Oryza sativat0e0e1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ha -1 as PE fb bispyribac sodium 10% SC at 30 ml ha -1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ha -1 , respectively), plant height (58.42 cm), rice total dry matter production (149.84 g plant -1 ), productive tillers hill -1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%)”
e1“weedy check”
e2“Zonal Agricultural Research Station (ZARS), Bangalore”
Claim · model-written summary
The herbicide sequence gave performed better rice total dry matter production (149.84 g plant -1) than the weedy check.
- Taxon
- rice (Oryza sativa L.)Oryza sativat0e0e1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ha -1 as PE fb bispyribac sodium 10% SC at 30 ml ha -1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ha -1 , respectively), plant height (58.42 cm), rice total dry matter production (149.84 g plant -1 ), productive tillers hill -1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%)”
e1“weedy check”
e2“Zonal Agricultural Research Station (ZARS), Bangalore”
Claim · model-written summary
The herbicide sequence gave performed better productive tillers hill -1 (40.32) than the weedy check.
- Taxon
- rice (Oryza sativa L.)Oryza sativat0e0e1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ha -1 as PE fb bispyribac sodium 10% SC at 30 ml ha -1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ha -1 , respectively), plant height (58.42 cm), rice total dry matter production (149.84 g plant -1 ), productive tillers hill -1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%)”
e1“weedy check”
e2“Zonal Agricultural Research Station (ZARS), Bangalore”
Claim · model-written summary
The herbicide sequence gave performed better panicle length (24.53 cm) than the weedy check.
- Taxon
- rice (Oryza sativa L.)Oryza sativat0e0e1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ha -1 as PE fb bispyribac sodium 10% SC at 30 ml ha -1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ha -1 , respectively), plant height (58.42 cm), rice total dry matter production (149.84 g plant -1 ), productive tillers hill -1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%)”
e1“weedy check”
e2“Zonal Agricultural Research Station (ZARS), Bangalore”
Claim · model-written summary
The herbicide sequence gave performed better 1000 grain weight (25.35 g) than the weedy check.
- Taxon
- rice (Oryza sativa L.)Oryza sativat0e0e1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ha -1 as PE fb bispyribac sodium 10% SC at 30 ml ha -1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ha -1 , respectively), plant height (58.42 cm), rice total dry matter production (149.84 g plant -1 ), productive tillers hill -1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%)”
e1“weedy check”
e2“Zonal Agricultural Research Station (ZARS), Bangalore”
Claim · model-written summary
The herbicide sequence gave performed better net returns (Rs. 62424) than the weedy check.
- Taxon
- rice (Oryza sativa L.)Oryza sativat0e0e1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ha -1 as PE fb bispyribac sodium 10% SC at 30 ml ha -1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ha -1 , respectively), plant height (58.42 cm), rice total dry matter production (149.84 g plant -1 ), productive tillers hill -1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%)”
e1“weedy check”
e2“Zonal Agricultural Research Station (ZARS), Bangalore”
Claim · model-written summary
The herbicide sequence gave higher B : C ratio (2.59) than the weedy check.
- Taxon
- rice (Oryza sativa L.)Oryza sativat0e0e1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ha -1 as PE fb bispyribac sodium 10% SC at 30 ml ha -1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ha -1 , respectively), plant height (58.42 cm), rice total dry matter production (149.84 g plant -1 ), productive tillers hill -1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%)”
e1“weedy check”
e2“Zonal Agricultural Research Station (ZARS), Bangalore”
Claim · model-written summary
The herbicide sequence gave lower weed index (3.80%) than the weedy check.
- Taxon
- rice (Oryza sativa L.)Oryza sativat0e0e1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ha -1 as PE fb bispyribac sodium 10% SC at 30 ml ha -1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ha -1 , respectively), plant height (58.42 cm), rice total dry matter production (149.84 g plant -1 ), productive tillers hill -1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%)”
e1“weedy check”
e2“Zonal Agricultural Research Station (ZARS), Bangalore”
Claim · model-written summary
The herbicide sequence gave higher weed control efficiency (90.52%) than the weedy check.
- Taxon
- rice (Oryza sativa L.)Oryza sativat0e0e1e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ha -1 as PE fb bispyribac sodium 10% SC at 30 ml ha -1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ha -1 , respectively), plant height (58.42 cm), rice total dry matter production (149.84 g plant -1 ), productive tillers hill -1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%)”
e1“weedy check”
e2“Zonal Agricultural Research Station (ZARS), Bangalore”
Claim · model-written summary
The herbicide sequence gave lower total weed density.
- Taxon
- rice (Oryza sativa L.)Oryza sativat0e0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ha -1 as PE fb bispyribac sodium 10% SC at 30 ml ha -1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ha -1 , respectively), plant height (58.42 cm), rice total dry matter production (149.84 g plant -1 ), productive tillers hill -1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%)”
e1“weedy check”
Claim · model-written summary
The herbicide sequence gave lower weed dry weight.
- Taxon
- rice (Oryza sativa L.)Oryza sativat0e0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ha -1 as PE fb bispyribac sodium 10% SC at 30 ml ha -1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ha -1 , respectively), plant height (58.42 cm), rice total dry matter production (149.84 g plant -1 ), productive tillers hill -1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%)”
e1“weedy check”
Claim · model-written summary
The authors recommend the herbicide sequence for aerobic rice growers under these climatic conditions.
- Taxon
- rice (Oryza sativa L.)Oryza sativat0e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice (Oryza sativa L.)”
e0“This practice could be recommended to farmers growing aerobic rice under these climatic conditions”
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