Claim · model-written summary
With water reduced and unchanged nitrogen input, a 30% density increase raised maize grain yield by 13.9%.
- Treatment
- increased planting density by 30%e0
- Outcome
- grain yielde0
- Direction
- enhancede0
- Value
- 13.9%e0
- Qualifier
- water was reduced while N application rate was unchangede0
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When water was reduced while N application rate was unchanged, increased planting density by 30% enhanced grain yield by 13.9% and aboveground N accumulation by 15.3%.”
t0“maize”
Title
Jingui Wei; Qiang Chai; Wen Yin; et al. Journal of Integrative Agriculture 2023. doi:10.1016/j.jia.2023.05.006
Other claims from this paper (17)
- Intervention effect Reduced water and nitrogen inputs decreased maize grain yield.
- Intervention effect Reduced water and nitrogen inputs decreased maize aboveground nitrogen accumulation.
- Intervention effect A 30% density increase compensated for the grain yield loss from reduced water and nitrogen supply.
- Intervention effect A 30% density increase compensated for the aboveground nitrogen accumulation loss from reduced water and nitrogen supply.
- Intervention effect With water reduced and unchanged nitrogen input, a 30% density increase raised aboveground nitrogen accumulation by 15.3%.
- Intervention effect Under reduced water and nitrogen input, a 30% density increase enhanced nitrogen uptake efficiency and nitrogen partial factor productivity.
- Intervention effect Under reduced water and nitrogen input, a 30% density increase compensated for nitrogen harvest index and nitrogen metabolism enzyme activity.
- Intervention effect W1N1D2 raised nitrogen uptake efficiency by 28.6 relative to W2N2D1.
- Intervention effect W1N1D2 raised nitrogen partial factor productivity by 17.6% relative to W2N2D1.
- Intervention effect W1N2D2 had 8.4% higher nitrogen uptake efficiency than W2N2D1.
- Intervention effect W1N2D2 had 13.9% higher nitrogen partial factor productivity than W2N2D1.
- Intervention effect W1N2D2 improved urease activity at R2 by 5.4%.
- Intervention effect W1N2D2 improved nitrate reductase activity at V6 by 19.6%.
- Intervention effect W1N2D2 increased net income by 22.1%.
- Intervention effect W1N2D2 increased the benefit to cost ratio by 16.7%.
- Intervention effect W1N1D2 reduced nitrate and ammoniacal nitrogen in the 40–100 cm soil layer at R6 relative to W2N2D1.
- Intervention effect W1N2D2 reduced nitrate and ammoniacal nitrogen in the 40–100 cm soil layer at R6 relative to W2N2D1.