Abstract
The growing scarcity of freshwater resources presents a major challenge to rice production particularly in irrigation systems that rely on limited freshwater supplies. Enhancing the water use efficiency has therefore become essential for sustainable rice cultivation. This study evaluated the rice crop water productivity under continuous flooding irrigation regime using the Ahero Irrigation Scheme in Kenya as a case study. The rice crop water productivity was determined as the ratio of the total mass of rice production to the total volume of water supplied for irrigation. The rice crop water productivity for the scheme was measured and found to be 0.3406 kgm-3. The measured value was lower than what is commonly achieved under improved irrigation regimes such as intermittent irrigation. The low water productivity was mainly attributed to conveyance losses along the earthen canals and application losses due to inefficient irrigation practices. Improving the water productivity requires several interventions; lining and maintenances of canals to reduce conveyance losses, adopting intermittent irrigation to use less irrigation water resource, training farmers on proper land preparation techniques to enhance leveling in the irrigation basins thereby reducing excessive irrigation water application in unleveled basins, and strengthening the capacity of Irrigation Water Users Associations to monitor and enforce proper irrigation water usage.
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Claims 7
Claim · model-written summary
Rice crop water productivity in the Ahero Irrigation Scheme under continuous flooding was 0.3406 kg m-3.
- Taxon
- rice
Oryza sativae0 - Treatment
- continuous flooding irrigation regimee0
- Outcome
- rice crop water productivitye1
- Value
- 0.3406e1
- Setting
- Ahero Irrigation Scheme in Kenyae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study evaluated the rice crop water productivity under continuous flooding irrigation regime using the Ahero Irrigation Scheme in Kenya as a case study”
e1“The rice crop water productivity for the scheme was measured and found to be 0.3406”
Claim · model-written summary
Rice water productivity under continuous flooding was lower than commonly achieved under improved irrigation such as intermittent irrigation.
- Taxon
- riceOryza sativae0
- Treatment
- continuous flooding irrigation regimee0
- Outcome
- rice crop water productivitye1
- Direction
- lowere2
- Comparator
- improved irrigation regimes such as intermittent irrigatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study evaluated the rice crop water productivity under continuous flooding irrigation regime using the Ahero Irrigation Scheme in Kenya as a case study”
e1“The rice crop water productivity for the scheme was measured and found to be 0.3406”
e2“The measured value was lower than what is commonly achieved under improved irrigation regimes such as intermittent irrigation”
Claim · model-written summary
Low rice water productivity is probably attributed to conveyance losses in earthen canals and application losses from inefficient irrigation.
- Taxon
- riceOryza sativae0
- Outcome
- low water productivitye3
- Qualifier
- conveyance losses along the earthen canals and application losses due to inefficient irrigation practicese3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study evaluated the rice crop water productivity under continuous flooding irrigation regime using the Ahero Irrigation Scheme in Kenya as a case study”
e3“The low water productivity was mainly attributed to conveyance losses along the earthen canals and application losses due to inefficient irrigation practices”
Claim · model-written summary
Lining and maintenance of canals is recommended to reduce conveyance losses and improve rice water productivity.
- Taxon
- riceOryza sativae0
- Treatment
- lining and maintenances of canalse4
- Outcome
- water productivitye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study evaluated the rice crop water productivity under continuous flooding irrigation regime using the Ahero Irrigation Scheme in Kenya as a case study”
e4“Improving the water productivity requires several interventions; lining and maintenances of canals to reduce conveyance losses”
Claim · model-written summary
Adopting intermittent irrigation is recommended to improve rice water productivity.
- Taxon
- riceOryza sativae0
- Treatment
- adopting intermittent irrigatione4
- Outcome
- water productivitye4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study evaluated the rice crop water productivity under continuous flooding irrigation regime using the Ahero Irrigation Scheme in Kenya as a case study”
e4“Improving the water productivity requires several interventions; lining and maintenances of canals to reduce conveyance losses, adopting intermittent irrigation to use less irrigation water resource”
Claim · model-written summary
Training farmers on land preparation for leveling is recommended to reduce excessive irrigation water application.
- Taxon
- riceOryza sativae0
- Treatment
- training farmers on proper land preparation techniquese5
- Outcome
- reducing excessive irrigation water applicatione5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study evaluated the rice crop water productivity under continuous flooding irrigation regime using the Ahero Irrigation Scheme in Kenya as a case study”
e5“training farmers on proper land preparation techniques to enhance leveling in the irrigation basins thereby reducing excessive irrigation water application in unleveled basins”
Claim · model-written summary
Strengthening Irrigation Water Users Associations is recommended to monitor and enforce proper irrigation water use.
- Taxon
- riceOryza sativae0
- Treatment
- strengthening the capacity of Irrigation Water Users Associationse5
- Outcome
- monitor and enforce proper irrigation water usagee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This study evaluated the rice crop water productivity under continuous flooding irrigation regime using the Ahero Irrigation Scheme in Kenya as a case study”
e5“strengthening the capacity of Irrigation Water Users Associations to monitor and enforce proper irrigation water usage”
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See all 380 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.