Abstract
The effect of irrigation levels and weed management practices on yield, yield components, water-use efficiency and economics of hybrid rice (cv. Pro Agro 6444) was studied. The results revealed that continuous submergence of 5 ± 2 cm with weed free check (at fortnight interval) showed maximum grain yield (8.22 t ha-1) and yield attributes. Continuous submergence with unweeded control consumed maximum water (153 cm) and lowest water-use efficiency (4.02 kg ha-1 mm-1), while irrigation (5 cm) at 3 days after disappearance of ponded water with weed free check gave the maximum water-use efficiency (16.31 kg ha-1mm-1). The maximum net return (Rs.33,565 ha-1) was obtained under continuous submergence with weed free check, however, the benefit: cost ratio (1.94) was highest under continuous submergence with pre-emergence application of Pyrazosulfuron ethyl 10% WP @ 25 g ha-1 at 7 days after transplanting.
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Claims 7
Claim · model-written summary
Continuous submergence with fortnightly weed-free management produced maximum grain yield of 8.22 t ha-1.
- Taxon
- hybrid rice
Oryza sativat0 - Treatment
- continuous submergence of 5 ± 2 cm with weed free check (at fortnight interval)e0
- Outcome
- grain yielde0
- Direction
- maximume0
- Value
- 8.22 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“continuous submergence of 5 ± 2 cm with weed free check (at fortnight interval) showed maximum grain yield (8.22 t ha-1) and yield attributes.”
t0“hybrid rice”
Claim · model-written summary
Continuous submergence with weed-free management maximized yield attributes.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- continuous submergence of 5 ± 2 cm with weed free check (at fortnight interval)e0
- Outcome
- yield attributese0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“continuous submergence of 5 ± 2 cm with weed free check (at fortnight interval) showed maximum grain yield (8.22 t ha-1) and yield attributes.”
t0“hybrid rice”
Claim · model-written summary
Continuous submergence without weeding used the most water, 153 cm.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- Continuous submergence with unweeded controle0
- Outcome
- watere0
- Direction
- maximume0
- Value
- 153 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Continuous submergence with unweeded control consumed maximum water (153 cm) and lowest water-use efficiency (4.02 kg ha-1 mm-1)”
t0“hybrid rice”
Claim · model-written summary
Continuous submergence without weeding had the lowest water-use efficiency, 4.02 kg ha-1 mm-1.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- Continuous submergence with unweeded controle0
- Outcome
- water-use efficiencye0
- Direction
- loweste0
- Value
- 4.02 kg ha-1 mm-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Continuous submergence with unweeded control consumed maximum water (153 cm) and lowest water-use efficiency (4.02 kg ha-1 mm-1)”
t0“hybrid rice”
Claim · model-written summary
Irrigation three days after ponded water disappeared with weed-free management maximized water-use efficiency at 16.31 kg ha-1mm-1.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- irrigation (5 cm) at 3 days after disappearance of ponded water with weed free checke0
- Outcome
- water-use efficiencye0
- Direction
- maximume0
- Value
- 16.31 kg ha-1mm-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“irrigation (5 cm) at 3 days after disappearance of ponded water with weed free check gave the maximum water-use efficiency (16.31 kg ha-1mm-1).”
t0“hybrid rice”
Claim · model-written summary
Continuous submergence with weed-free management gave the maximum net return, Rs.33,565 ha-1.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- continuous submergence with weed free checke0
- Outcome
- net returne0
- Direction
- maximume0
- Value
- Rs.33,565 ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum net return (Rs.33,565 ha-1) was obtained under continuous submergence with weed free check”
t0“hybrid rice”
Claim · model-written summary
Continuous submergence with pre-emergence Pyrazosulfuron ethyl produced the highest benefit-cost ratio, 1.94.
- Taxon
- hybrid riceOryza sativat0
- Treatment
- continuous submergence with pre-emergence application of Pyrazosulfuron ethyl 10% WP @ 25 g ha-1 at 7 days after transplantinge0
- Outcome
- benefit: cost ratioe0
- Direction
- higheste0
- Value
- 1.94e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the benefit: cost ratio (1.94) was highest under continuous submergence with pre-emergence application of Pyrazosulfuron ethyl 10% WP @ 25 g ha-1 at 7 days after transplanting.”
t0“hybrid rice”
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