Abstract
Studies were conducted to evaluate both lowland and aerobic rice performances under different irrigation methods and soil moisture regimes. Results showed that aerobic rice cultivated under overhead sprinkler irrigation required least amount of water but more susceptible to foliar diseases. With supplementary irrigation, grain yield obtained ranged from 2.2 to 3.6 t/ha and the seasonal field water requirement was between 442 and 763 mm. Light and frequent irrigation was better when compared to heavy and occasional irrigation to avoid unnecessary water stress that could cause yield reduction. As much as 50% yield reduction was recorded if water stress occurred during heading and early grain formation periods. Despite lower crop yield, studies showed that aerobic rice cultivation used much less water for production. This in turn improved water productivity from 0.4 to 0.6 kg/m3 compared to irrigated wetland rice. The reduction in the water used was mainly attributed to the reduced seepage and percolation losses, decrease in evaporation since there was no standing water in the field, and also water required during pre-saturation period for land puddling was completely
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Claims 10
Claim · model-written summary
Aerobic rice under overhead sprinkler irrigation required the least amount of water.
- Taxon
- rice
Oryza sativat0 - Treatment
- overhead sprinkler irrigatione0
- Outcome
- amount of watere0
- Direction
- leaste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“aerobic rice cultivation”
e0“aerobic rice cultivated under overhead sprinkler irrigation required least amount of water but more susceptible to foliar diseases”
Claim · model-written summary
Aerobic rice under overhead sprinkler irrigation was more susceptible to foliar diseases.
- Taxon
- riceOryza sativat0
- Treatment
- overhead sprinkler irrigatione0
- Outcome
- foliar diseasese0
- Direction
- more susceptiblee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“aerobic rice cultivation”
e0“aerobic rice cultivated under overhead sprinkler irrigation required least amount of water but more susceptible to foliar diseases”
Claim · model-written summary
With supplementary irrigation, aerobic rice grain yield ranged from 2.2 to 3.6 t/ha.
- Taxon
- riceOryza sativat0
- Treatment
- supplementary irrigatione1
- Outcome
- grain yielde1
- Value
- 2.2 to 3.6 t/hae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“aerobic rice cultivation”
e1“With supplementary irrigation, grain yield obtained ranged from 2.2 to 3.6 t/ha and the seasonal field water requirement was between 442 and 763 mm”
Claim · model-written summary
With supplementary irrigation, the seasonal field water requirement was between 442 and 763 mm.
- Taxon
- riceOryza sativat0
- Treatment
- supplementary irrigatione1
- Outcome
- seasonal field water requiremente1
- Value
- 442 and 763 mme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“aerobic rice cultivation”
e1“With supplementary irrigation, grain yield obtained ranged from 2.2 to 3.6 t/ha and the seasonal field water requirement was between 442 and 763 mm”
Claim · model-written summary
Light and frequent irrigation was better than heavy and occasional irrigation in avoiding unnecessary water stress.
- Taxon
- riceOryza sativat0
- Treatment
- Light and frequent irrigatione2
- Outcome
- unnecessary water stresse2
- Direction
- bettere2
- Comparator
- heavy and occasional irrigatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“aerobic rice cultivation”
e2“Light and frequent irrigation was better when compared to heavy and occasional irrigation to avoid unnecessary water stress that could cause yield reduction”
Claim · model-written summary
As much as 50% yield reduction was recorded when water stress occurred during heading and early grain formation.
- Taxon
- riceOryza sativat0
- Organ / stage
- heading and early grain formation periodse3
- Treatment
- water stresse3
- Outcome
- yielde3
- Direction
- reductione3
- Value
- 50%e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“aerobic rice cultivation”
e3“As much as 50% yield reduction was recorded if water stress occurred during heading and early grain formation periods”
Claim · model-written summary
Aerobic rice cultivation used much less water for production.
- Taxon
- riceOryza sativat0
- Treatment
- aerobic rice cultivatione4
- Outcome
- water for productione4
- Direction
- lesse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“aerobic rice cultivation”
e4“Despite lower crop yield, studies showed that aerobic rice cultivation used much less water for production”
Claim · model-written summary
Aerobic rice cultivation improved water productivity from 0.4 to 0.6 kg/m3 compared with irrigated wetland rice.
- Taxon
- riceOryza sativat0
- Treatment
- aerobic rice cultivatione4
- Outcome
- water productivitye5
- Direction
- improvede5
- Value
- 0.4 to 0.6 kg/m3e5
- Comparator
- irrigated wetland ricee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“aerobic rice cultivation”
e4“Despite lower crop yield, studies showed that aerobic rice cultivation used much less water for production”
e5“This in turn improved water productivity from 0.4 to 0.6 kg/m3 compared to irrigated wetland rice”
Claim · model-written summary
Aerobic rice cultivation gave lower crop yield.
- Taxon
- riceOryza sativat0
- Treatment
- aerobic rice cultivatione4
- Outcome
- crop yielde4
- Direction
- lowere4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“aerobic rice cultivation”
e4“Despite lower crop yield, studies showed that aerobic rice cultivation used much less water for production”
Claim · model-written summary
The reduction in water use of aerobic rice is mainly attributed to reduced seepage and percolation losses and decreased evaporation.
- Taxon
- riceOryza sativat0
- Outcome
- reduction in the water usede6
- Qualifier
- reduced seepage and percolation losses, decrease in evaporatione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“aerobic rice cultivation”
e6“The reduction in the water used was mainly attributed to the reduced seepage and percolation losses, decrease in evaporation since there was no standing water in the field”
The same questions in other papers
drought · yield · Oryza sativa (rice)Positive and negative results
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See all 325 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.