Claim · model-written summary
Lower irrigation and nitrogen rates gave low water use efficiency and irrigation water use efficiency
- Taxon
- onion
Allium cepae0 - Treatment
- Lower irrigation and nitrogen application ratese1
- Outcome
- water use efficiency, irrigation water use efficiencye1
- Direction
- lowe1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The onion was used as the test crop”
e1“Lower irrigation and nitrogen application rates mutually restricted the water and nitrogen utilization, resulting in low water use efficiency, irrigation water use efficiency, nitrogen partial factor productivity, and nitrogen agronomic use efficiency”
Title
Xiaofan Pan; Haoliang Deng; Guang Li; et al. Plants 2025. doi:10.3390/plants15010006
Other claims from this paper (18)
- Intervention effect Medium-to-high water-nitrogen combinations improved onion quality
- Intervention effect Excessive irrigation and nitrogen application inhibited bulb quality accumulation
- Intervention effect Yield and economic benefits increased with increasing irrigation amount
- Intervention effect Excessive nitrogen application gave a diminishing yield-increasing effect
- Intervention effect Excessive nitrogen application increased farm input costs
- Intervention effect Excessive nitrogen application reduced economic benefits
- Intervention effect In 2020 the N3W3 treatment gave the highest onion yield, 136.93 t·ha−1, with no significant difference from N2W3
- Intervention effect In 2020 the N3W3 treatment gave the highest economic benefits, 20,376.3 USD·ha−1, with no significant difference from N2W3
- Intervention effect In 2020 the N3W3 treatment gave the highest net profit, 14,320.8 USD·ha−1, with no significant difference from N2W3
- Intervention effect From 2021 to 2023 the N2W3 treatment gave the highest onion yield, averaging 130.87 t·ha−1
- Intervention effect From 2021 to 2023 the N2W3 treatment gave the highest economic benefits, averaging 28,449.5 USD·ha−1
- Intervention effect From 2021 to 2023 the N2W3 treatment gave the highest net profit, averaging 21,881.5 USD·ha−1
- Intervention effect Lower irrigation and nitrogen rates gave low nitrogen partial factor productivity and nitrogen agronomic use efficiency
- Association The relationship of irrigation amount and nitrogen rate with onion economic benefits fits a bivariate quadratic regression model
- Method / resource The regression model predicts onion economic benefits that are highly correlated with actual economic benefits
- Association Onion economic benefits show a parabolic trend as water and nitrogen inputs increase
- Method / resource Model optimisation gives onion economic benefits close to 27,000–29,000 USD·ha−1 at 100% irrigation and 264 kg·ha−1 nitrogen
- Recommendation The optimised water and nitrogen management model can be used as a technical reference for onion in the Hexi Oasis irrigation area