Claim · model-written summary
Increasing N input and planting density enhanced dry matter accumulation of summer maize.
- Treatment
- Increasing N input and planting densitye1
- Outcome
- dry matter accumulatione1
- Direction
- enhancede1
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“an appropriate combination of increased planting density with reduced N application could enhance profit and nitrogen use of summer maize in Huanghuaihai region of China”
e1“Increasing N input and planting density delayed the physiological maturity and enhanced dry matter accumulation”
Title
HaiYan Zhang; ChengRan Zhang; Peng Sun; et al. Scientific Reports 2022. doi:10.1038/s41598-022-06059-0
Other claims from this paper (15)
- Intervention effect Increasing N input and planting density delayed physiological maturity of summer maize.
- Intervention effect At N2 level grain yield and profit were kept stable relative to the traditional N3 level.
- Intervention effect At N1 level grain yield and profit decreased relative to the traditional N3 level.
- Intervention effect Partial factor productivity of applied N increased with decreasing N level.
- Intervention effect Nitrogen efficiency ratio increased with decreasing N level.
- Intervention effect At D2 density grain yield, profit and PFP N increased relative to the traditional D1 density.
- Intervention effect At D3 density grain yield, profit and PFP N were kept stable.
- Intervention effect At D2 density NER was kept stable.
- Intervention effect At D3 density NER decreased.
- Observation The predicted optimum for 2017 was 199 kg ha-1 N and 81,081 plants ha-1.
- Observation The predicted optimum for 2018 was 205 kg ha-1 N and 84,782 plants ha-1.
- Intervention effect The optimal combinations increased grain yield by 17.6% over the traditional N3D1 treatment.
- Intervention effect The optimal combinations increased PEP N by 39.8% over the traditional N3D1 treatment.
- Intervention effect The optimal combinations increased NRE by 3.6% over the traditional N3D1 treatment.
- Recommendation An appropriate combination of increased planting density with reduced N application could enhance profit and nitrogen use of summer maize.