Abstract
Participatory action research was conducted in Luinyata VDC of Bajhang district during main rice-growing season of 2012 to evaluate the effects of cultivation practices in rice varieties. The experiment was in factorial randomized complete block design, where two methods of cultivations: System of rice intensification (SRI) and conventional transplanting (CT) and 3 different varieties: Khumal-4, Thapachini and Hansaraj Basmati were evaluated. Data were collected on grain yield, number of tillers, panicle length and number of filled and unfilled grains per panicle. Results averaged across the three varieties showed significantly better crop performance with SRI practices: higher number of tillers per hill, panicles per hill, tillers per m2, panicles per m2, and grain yield. The values of these parameters comparing SRI with conventional practice were, respectively, 24.5 vs. 11.3, 21.5 vs. 9.5, 305 vs. 273, 273.5 vs. 233.8, and 7.6 vs. 4.46 tha-1. Among the varieties evaluated, the highest yield was achieved with the Thapachini (8.11tha-1) using SRI methods. Average yield increase across the three varieties with SRI practice was 70% compared CT. These results indicate the practical relevance of SRI principles for increasing rice production in mountainous regions of Nepal.
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Claims 8
Claim · model-written summary
SRI produced more tillers per hill than conventional transplanting.
- Taxon
- rice
Oryza sativat0 - Treatment
- SRIe0
- Outcome
- tillers per hille0
- Direction
- highere0
- Value
- 24.5 vs. 11.3e0
- Comparator
- conventional practicee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher number of tillers per hill, panicles per hill, tillers per m2, panicles per m2, and grain yield. The values of these parameters comparing SRI with conventional practice were, respectively, 24.5 vs. 11.3, 21.5 vs. 9.5, 305 vs. 273, 273.5 vs. 233.8, and 7.6 vs. 4.46 tha-1.”
t0“improved rice varieties”
Claim · model-written summary
SRI produced more panicles per hill.
- Taxon
- riceOryza sativat0
- Treatment
- SRIe0
- Outcome
- panicles per hille0
- Direction
- highere0
- Value
- 21.5 vs. 9.5e0
- Comparator
- conventional practicee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher number of tillers per hill, panicles per hill, tillers per m2, panicles per m2, and grain yield. The values of these parameters comparing SRI with conventional practice were, respectively, 24.5 vs. 11.3, 21.5 vs. 9.5, 305 vs. 273, 273.5 vs. 233.8, and 7.6 vs. 4.46 tha-1.”
t0“improved rice varieties”
Claim · model-written summary
SRI produced more tillers per square meter.
- Taxon
- riceOryza sativat0
- Treatment
- SRIe0
- Outcome
- tillers per m2e0
- Direction
- highere0
- Value
- 305 vs. 273e0
- Comparator
- conventional practicee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher number of tillers per hill, panicles per hill, tillers per m2, panicles per m2, and grain yield. The values of these parameters comparing SRI with conventional practice were, respectively, 24.5 vs. 11.3, 21.5 vs. 9.5, 305 vs. 273, 273.5 vs. 233.8, and 7.6 vs. 4.46 tha-1.”
t0“improved rice varieties”
Claim · model-written summary
SRI produced more panicles per square meter.
- Taxon
- riceOryza sativat0
- Treatment
- SRIe0
- Outcome
- panicles per m2e0
- Direction
- highere0
- Value
- 273.5 vs. 233.8e0
- Comparator
- conventional practicee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher number of tillers per hill, panicles per hill, tillers per m2, panicles per m2, and grain yield. The values of these parameters comparing SRI with conventional practice were, respectively, 24.5 vs. 11.3, 21.5 vs. 9.5, 305 vs. 273, 273.5 vs. 233.8, and 7.6 vs. 4.46 tha-1.”
t0“improved rice varieties”
Claim · model-written summary
SRI increased grain yield across varieties relative to conventional practice.
- Taxon
- riceOryza sativat0
- Treatment
- SRIe0
- Outcome
- grain yielde0
- Direction
- highere0
- Value
- 7.6 vs. 4.46 tha-1e0
- Comparator
- conventional practicee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher number of tillers per hill, panicles per hill, tillers per m2, panicles per m2, and grain yield. The values of these parameters comparing SRI with conventional practice were, respectively, 24.5 vs. 11.3, 21.5 vs. 9.5, 305 vs. 273, 273.5 vs. 233.8, and 7.6 vs. 4.46 tha-1.”
t0“improved rice varieties”
Claim · model-written summary
Thapachini had the highest yield under SRI.
- Taxon
- riceOryza sativat0
- Material
- Thapachinie0
- Treatment
- SRI methodse0
- Outcome
- yielde0
- Direction
- higheste0
- Value
- 8.11tha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the varieties evaluated, the highest yield was achieved with the Thapachini (8.11tha-1) using SRI methods.”
t0“improved rice varieties”
Claim · model-written summary
Average SRI yield increase across three varieties was 70% compared with CT.
- Taxon
- riceOryza sativat0
- Treatment
- SRI practicee0
- Outcome
- yielde0
- Direction
- increasee0
- Value
- 70%e0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Average yield increase across the three varieties with SRI practice was 70% compared CT.”
t0“improved rice varieties”
Claim · model-written summary
The authors conclude SRI principles can increase rice production in mountainous Nepal.
- Taxon
- riceOryza sativae0
- Outcome
- increasing rice productione0
- Setting
- mountainous regions of Nepale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results indicate the practical relevance of SRI principles for increasing rice production in mountainous regions of Nepal.”
t0“improved rice varieties”
The same questions in other papers
irrigation · yield · Oryza sativa (rice)Positive and negative results
905 papers in the same direction as this paper · 201 in the opposite direction · 64 reporting no difference from an alternative
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- positive
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