Abstract
Due to labor shortage chemical weed control becomes a priority by time. An experiment was carried out to find out an effective and economic herbicide to control weeds in the Agronomy Farm of Bangladesh Rice Research Institute, Gazipur, during December 2008 to June 2009 in winter season. Surjamoni and BRRI dhan-29 were used as rice cultivars. Weed control treatments were assigned using three rates of Becolor 5G (butachlor), Bouncer 10WP (pyrazosulfuron ethyl) and Becofit 500EC (Pretilachlor). Visual observation indicates that these herbicides were not toxic to rice plants. Paspalum distichum was the dominating weed species in the experimental site. Weed control efficiency ranged (WCE) from 42 to 84%. Above 80% WCE was obtained by Becolor 5G @ 30 kg ha -1 , Bouncer 10WP @ 150g ha -1 and Becofit 500EC @ 1.20 L ha -1 , respectively. The highest grain yield (6.96 t ha -1 ) was obtained from Surjamoni when treated with Bouncer 10WP @ 150g ha -1 which was 49% higher than control. BRRI dhan29 produced also the highest grain yield when treated with same treatment which was 37% higher than control. In terms of profitability of rice production, application of Bouncer 10WP @ 150g ha -1 gave highest gross return and gross margin than other weed control treatments. The highest (2.77) benefit cost ratio (BCR) of Bouncer 10WP @ 150g ha -1 suggested that it could be an alternative weed control option for profitable rice production.
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Claims 10
Claim · model-written summary
The tested herbicides showed no visible toxicity to rice.
- Taxon
- rice
Oryza sativae0 - Treatment
- these herbicidese0
- Outcome
- not toxic to rice plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Visual observation indicates that these herbicides were not toxic to rice plants”
Claim · model-written summary
Paspalum distichum dominated the site weeds.
- Taxon
- riceOryza sativae1
- Interactor
- Paspalum distichum
Paspalum distichume0weed - Outcome
- dominating weed speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Paspalum distichum was the dominating weed species in the experimental site”
e1“rice cultivars”
Claim · model-written summary
Weed control efficiency across treatments ranged from 42 to 84%.
- Taxon
- riceOryza sativae1
- Outcome
- Weed control efficiencye0
- Value
- 42 to 84%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed control efficiency ranged (WCE) from 42 to 84%”
e1“rice cultivars”
Claim · model-written summary
Becolor 5G at 30 kg ha -1 achieved above 80% weed control efficiency.
- Taxon
- riceOryza sativae1
- Treatment
- Becolor 5G @ 30 kg ha -1e0
- Outcome
- WCEe0
- Value
- Above 80%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Above 80% WCE was obtained by Becolor 5G @ 30 kg ha -1”
e1“rice cultivars”
Claim · model-written summary
Bouncer 10WP at 150g ha -1 achieved above 80% weed control efficiency.
- Taxon
- riceOryza sativae1
- Treatment
- Bouncer 10WP @ 150g ha -1e0
- Outcome
- WCEe0
- Value
- Above 80%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Above 80% WCE was obtained by Becolor 5G @ 30 kg ha -1 , Bouncer 10WP @ 150g ha -1”
e1“rice cultivars”
Claim · model-written summary
Becofit 500EC at 1.20 L ha -1 achieved above 80% weed control efficiency.
- Taxon
- riceOryza sativae1
- Treatment
- Becofit 500EC @ 1.20 L ha -1e0
- Outcome
- WCEe0
- Value
- Above 80%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Above 80% WCE was obtained by Becolor 5G @ 30 kg ha -1 , Bouncer 10WP @ 150g ha -1 and Becofit 500EC @ 1.20 L ha -1”
e1“rice cultivars”
Claim · model-written summary
Surjamoni with Bouncer 10WP at 150g ha -1 yielded 6.96 t ha -1, 49% above control.
- Taxon
- riceOryza sativae1
- Material
- Surjamonie0
- Treatment
- Bouncer 10WP @ 150g ha -1e0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 6.96 t ha -1e0
- Qualifier
- 49%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest grain yield (6.96 t ha -1 ) was obtained from Surjamoni when treated with Bouncer 10WP @ 150g ha -1 which was 49% higher than control”
e1“rice cultivars”
Claim · model-written summary
Bouncer 10WP at 150g ha -1 gave the highest gross return and gross margin.
- Taxon
- riceOryza sativae1
- Treatment
- Bouncer 10WP @ 150g ha -1e0
- Outcome
- gross return and gross margine0
- Direction
- higheste0
- Comparator
- other weed control treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of Bouncer 10WP @ 150g ha -1 gave highest gross return and gross margin than other weed control treatments”
e1“rice cultivars”
Claim · model-written summary
Bouncer 10WP at 150g ha -1 had the highest benefit cost ratio, 2.77.
- Taxon
- riceOryza sativae1
- Treatment
- Bouncer 10WP @ 150g ha -1e0
- Outcome
- benefit cost ratio (BCR)e0
- Direction
- higheste0
- Value
- 2.77e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest (2.77) benefit cost ratio (BCR) of Bouncer 10WP @ 150g ha -1”
e1“rice cultivars”
Claim · model-written summary
The authors recommend Bouncer 10WP at 150g ha -1 as an alternative for profitable rice weed control.
- Taxon
- riceOryza sativae0
- Treatment
- Bouncer 10WP @ 150g ha -1e0
- Outcome
- alternative weed control option for profitable rice productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bouncer 10WP @ 150g ha -1 suggested that it could be an alternative weed control option for profitable rice production”