Abstract
Rice is the greatest consumer of water among all crops and uses about 80% of the total irrigated freshwater resources. The high demand for rice in Kenya due to urbanization has led to increases in price. In Mwea, rice is grown under continuous flooding. This system of rice production depends on a continuous supply of water for irrigation and soils with high water holding capacities yet, the main rice growing season coincides with the low rainfall season. Thus, water rationing during this period is inevitable. To be able to meet the growing demand with the depreciating water resources sustainably, new innovative ways of rice crop production are needed. System of Rice Intensification (SRI) is a new innovation that offers an opportunity to reduce water demand accompanied by yield increase of rice. Field experiments were conducted in 2010/2011 at Mwea Irrigation Agricultural Development (MIAD) of Mwea Irrigation Scheme (MIS) during the main growing season (August 2010January 2011) to assess the effects on water savings for three varieties of rice grown under SRI versus CF. The results showed that SRI gave the highest savings on water, yields hence water productivity for all the three varieties. Yield increased by 0.6t/ha, 2t/ha and 1.5t/ha while water savings were 2528m 3 /ha, 2268m 3 /ha and 2846m 3 /ha for the Basmati 370, BW 196 and IR 2793-80-1 varieties, respectively. Similarly, calculations showed water productivity (kilograms of rice per cubic meter of irrigation water supplied) averaging 120% higher for the three varieties under SRI management (2.16 kg/m 3 vs. 0.98 kg/m 3 ).
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
SRI increased Basmati 370 rice yield by 0.6t/ha relative to continuous flooding.
- Taxon
- RICE
Oryza sativat0 - Material
- Basmati 370e0
- Treatment
- SRIe1
- Outcome
- Yielde0
- Direction
- increasede0
- Value
- 0.6t/hae0
- Comparator
- CFe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield increased by 0.6t/ha, 2t/ha and 1.5t/ha while water savings were 2528m 3 /ha, 2268m 3 /ha and 2846m 3 /ha for the Basmati 370, BW 196 and IR 2793-80-1 varieties, respectively.”
e1“under SRI versus CF”
t0“PADDY RICE UNDER SYSTEM”
Claim · model-written summary
SRI increased BW 196 rice yield by 2t/ha relative to continuous flooding.
- Taxon
- RICEOryza sativat0
- Material
- BW 196e0
- Treatment
- SRIe1
- Outcome
- Yielde0
- Direction
- increasede0
- Value
- 2t/hae0
- Comparator
- CFe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield increased by 0.6t/ha, 2t/ha and 1.5t/ha while water savings were 2528m 3 /ha, 2268m 3 /ha and 2846m 3 /ha for the Basmati 370, BW 196 and IR 2793-80-1 varieties, respectively.”
e1“under SRI versus CF”
t0“PADDY RICE UNDER SYSTEM”
Claim · model-written summary
SRI increased IR 2793-80-1 rice yield by 1.5t/ha relative to continuous flooding.
- Taxon
- RICEOryza sativat0
- Material
- IR 2793-80-1e0
- Treatment
- SRIe1
- Outcome
- Yielde0
- Direction
- increasede0
- Value
- 1.5t/hae0
- Comparator
- CFe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield increased by 0.6t/ha, 2t/ha and 1.5t/ha while water savings were 2528m 3 /ha, 2268m 3 /ha and 2846m 3 /ha for the Basmati 370, BW 196 and IR 2793-80-1 varieties, respectively.”
e1“under SRI versus CF”
t0“PADDY RICE UNDER SYSTEM”
Claim · model-written summary
SRI saved 2528m 3 /ha of water for Basmati 370.
- Taxon
- RICEOryza sativat0
- Material
- Basmati 370e0
- Treatment
- SRIe1
- Outcome
- water savingse0
- Direction
- savingse0
- Value
- 2528m 3 /hae0
- Comparator
- CFe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water savings were 2528m 3 /ha, 2268m 3 /ha and 2846m 3 /ha for the Basmati 370, BW 196 and IR 2793-80-1 varieties, respectively.”
e1“under SRI versus CF”
t0“PADDY RICE UNDER SYSTEM”
Claim · model-written summary
SRI saved 2268m 3 /ha of water for BW 196.
- Taxon
- RICEOryza sativat0
- Material
- BW 196e0
- Treatment
- SRIe1
- Outcome
- water savingse0
- Direction
- savingse0
- Value
- 2268m 3 /hae0
- Comparator
- CFe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water savings were 2528m 3 /ha, 2268m 3 /ha and 2846m 3 /ha for the Basmati 370, BW 196 and IR 2793-80-1 varieties, respectively.”
e1“under SRI versus CF”
t0“PADDY RICE UNDER SYSTEM”
Claim · model-written summary
SRI saved 2846m 3 /ha of water for IR 2793-80-1.
- Taxon
- RICEOryza sativat0
- Material
- IR 2793-80-1e0
- Treatment
- SRIe1
- Outcome
- water savingse0
- Direction
- savingse0
- Value
- 2846m 3 /hae0
- Comparator
- CFe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water savings were 2528m 3 /ha, 2268m 3 /ha and 2846m 3 /ha for the Basmati 370, BW 196 and IR 2793-80-1 varieties, respectively.”
e1“under SRI versus CF”
t0“PADDY RICE UNDER SYSTEM”
Claim · model-written summary
Average water productivity was 120% higher for the three varieties under SRI than under continuous flooding.
- Taxon
- riceOryza sativae0
- Treatment
- SRIe0
- Outcome
- water productivitye0
- Direction
- highere0
- Value
- 120%e0
- Qualifier
- 2.16 kg/m 3 vs. 0.98 kg/m 3e0
- Comparator
- CFe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water productivity (kilograms of rice per cubic meter of irrigation water supplied) averaging 120% higher for the three varieties under SRI management (2.16 kg/m 3 vs. 0.98 kg/m 3 )”
e1“under SRI versus CF”
The same questions in other papers
irrigation · physiology: water · Oryza sativa (rice)Positive and negative results
349 papers in the same direction as this paper · 25 in the opposite direction · 5 reporting no difference from an alternative
- positive
- positive
- negative
376 papers more in this group
See all 380 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
- no effect
- positive
- positive
1,167 papers more in this group
See all 1,171 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.