Claim · model-written summary
Delayed nitrogen topdressing reduced plant nitrogen content.
Zea maysNot reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early N excess, deficiency, or delayed N topdressing reduced plant N content”
t0“Maize”
Title
Yunfeng Peng; Xuexian Li; Chunjian Li PLoS ONE 2012. doi:10.1371/journal.pone.0037726
Other claims from this paper (15)
- Intervention effect Nitrogen deficiency transiently stimulated early initiated nodal root growth.
- Intervention effect Nitrogen deficiency suppressed growth of later initiated nodal roots.
- Intervention effect Nitrogen deficiency accelerated root death.
- Intervention effect Nitrogen deficiency caused an early decrease in total root length.
- Intervention effect Early nitrogen excess reduced plant nitrogen content.
- Intervention effect Nitrogen deficiency reduced plant nitrogen content.
- Intervention effect Early nitrogen excess significantly decreased dry matter accumulation and grain yield.
- Intervention effect Nitrogen deficiency significantly decreased dry matter accumulation and grain yield.
- Intervention effect Delayed nitrogen topdressing significantly decreased dry matter accumulation and grain yield.
- Observation Nitrogen overapplication led to leaching.
- Intervention effect Leached nitrogen stimulated maize root growth in the 40-50 cm soil layer.
- Mechanism Temporal root growth patterns were controlled by shoot growth.
- Mechanism Spatial root growth patterns were controlled by local soil mineral nitrogen.
- Recommendation The authors recommend controlling total chemical nitrogen fertilizer amount.
- Recommendation The authors recommend split nitrogen applications to synchronize crop demand with soil supply.