Claim · model-written summary
Increasing irrigation amounts slightly decreased maize grain yield.
Zea maysNot reportedComparator
Verbatim
e0“the further increase in irrigation amounts induced only a slight decrease in grain yield”
t0“maize”
Title
Xiaodong Fan; Xiaotao Hu; Yakun Wang; et al. Journal of Integrative Agriculture 2025. doi:10.1016/j.jia.2025.07.013
Other claims from this paper (12)
- Observation Deep soil moisture recharge ranged from 73.34–267.42 mm in the wet 2021 season.
- Observation Deep soil moisture recharge ranged from 0–150.03 mm in the normal 2022 season.
- Association Deep soil moisture recharge began increasing linearly when effective precipitation and irrigation exceeded 390 mm.
- Association Maize grain yield had a quadratic relationship with deep soil moisture recharge.
- Observation The highest 2021 maize grain yield occurred under T2, at 11.44 t ha −1.
- Observation The highest 2022 maize grain yield occurred under T3, at 11.25 t ha −1.
- Observation T4 maize grain yield in 2021 was 3.9% below maximum yield.
- Observation T5 maize grain yield in 2022 was 5.7% below maximum yield.
- Observation T4 deep soil moisture recharge in 2021 was 2.4 times that under T2.
- Observation T5 deep soil moisture recharge in 2022 was 5.0 times that under T3.
- Intervention effect Increasing irrigation amounts significantly increased deep soil moisture recharge.
- Recommendation The authors recommend deep storage irrigation as an alternative for northern Chinese irrigation districts facing water scarcity and groundwater decline.