Claim · model-written summary
N4 yielded less than N3.
- Taxon
- rice
Oryza sativat0 - Treatment
- N4 treatmente0
- Outcome
- yielde0
- Direction
- lowere0
- Comparator
- N3 treatmente0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the yield of N4 treatment is lower than that of the N3 treatment”
t0“rice”
Title
Xiao-hong GUO; Yu-chen LAN; Ling-qi XU; et al. Journal of Integrative Agriculture 2021. doi:10.1016/s2095-3119(20)63479-7
Other claims from this paper (14)
- Intervention effect Nitrogen application rate and hill density significantly affected grain yield.
- Method / resource The model predicted highest yield at 142.61 kg N ha–1 with planting density 33.3×104 ha–1.
- Mechanism Higher grain yield was mainly attributed to more panicles per square metre.
- Intervention effect Nitrogen rate and hill density significantly affected aboveground rice nitrogen accumulation.
- Association Aboveground nitrogen accumulation was highly significantly positively correlated with grain yield at maturity.
- Intervention effect From full heading to maturity, N4 had an aboveground nitrogen loss rate 70.21% higher than N3.
- Intervention effect N3 aboveground nitrogen accumulation rate was 81.68% above control in 2018.
- Intervention effect N3 aboveground nitrogen accumulation rate was 106.07% above control in 2019.
- Intervention effect Nitrogen translocation and its contribution rate increased with nitrogen application rate and hill density.
- Intervention effect Nitrogen productivity of dry matter and grain first increased and then decreased with nitrogen rate and hill density.
- Intervention effect Agronomic nitrogen use efficiency decreased as nitrogen rate increased.
- Intervention effect Hill density did not significantly affect agronomic nitrogen use efficiency.
- Association Nitrogen productivity of dry matter and grain and agronomic nitrogen use efficiency were negatively correlated with grain yield.
- Recommendation The authors recommend combining nitrogen rate and hill density to promote aboveground nitrogen accumulation and improve rice yield.