Claim · model-written summary
Limited irrigation was more profitable than full irrigation when the cost of water was included, under assumed future water costs.
- Taxon
- winter wheat
Triticum aestivume0 - Treatment
- limited irrigatione5
- Outcome
- profitablee5
- Direction
- more profitablee5
- Qualifier
- based on assumptions about future water costse5
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The calibrated model simulated accurately above-ground biomass, grain yield and evapotranspiration of winter wheat in response to irrigation management”
e5“When the cost of water was taken into account, limited irrigation was found to be more profitable based on assumptions about future water costs”
Title
Di Zhang; Ruiqi Li; William D. Batchelor; et al. PLoS ONE 2018. doi:10.1371/journal.pone.0189989
Other claims from this paper (10)
- Method / resource The calibrated CERES-Wheat model simulated winter wheat above-ground biomass, grain yield and evapotranspiration accurately across irrigation treatments.
- Intervention effect Simulated highest winter wheat yield came from irrigation at jointing (T9) in normal and dry rainfall years.
- Intervention effect Simulated highest winter wheat yield came from irrigation at double ridge (T8) in wet years.
- Intervention effect A single simulated irrigation at jointing gave 88% of the yield of a double irrigation in wet years.
- Intervention effect A single simulated irrigation at jointing gave 86% of the yield of a double irrigation in normal years.
- Intervention effect A single simulated irrigation at jointing gave 91% of the yield of a double irrigation in dry years.
- Intervention effect A single irrigation at jointing or double ridge gave higher winter wheat water use efficiency, because it obtained higher evapotranspiration.
- Intervention effect Simulated farmer irrigation practices produced the highest yield and net income.
- Recommendation A subsidy will likely be needed to compensate farmers for yield reductions due to water savings.
- Recommendation Limiting irrigation to a single irrigation at jointing would minimize the impact on farmer net return.