Claim · model-written summary
Early shading (L2) significantly reduced NPK accumulation from jointing to heading and at whole heading stage compared with no shading.
- Taxon
- japonica super ricee0
- Treatment
- shading 20 days before headinge1
- Outcome
- NPK accumulation from jointing to heading and at whole heading stagee4
- Direction
- reducede4
- Comparator
- L1e4
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Verbatim
e0“using japonica super rice Nanjing 44 and Ningjing 3”
e1“L2: shading 20 days before heading”
e4“Compared with L1, L2 significantly reduced NPK accumulation from jointing to heading and at whole heading stage”
Title
Ya Wang ACTA AGRONOMICA SINICA 2014
Other claims from this paper (10)
- Association Yield under the same nitrogen level was highest with no shading, followed by late shading, then early shading.
- Mechanism The NPK accumulation reduction under early shading is mainly due to decreased root oxidation ability of α-NA and root dry weight before heading.
- Intervention effect Early shading (L2) decreased final grain yield by 30.58%–35.26% compared with no shading.
- Intervention effect Late shading (L3) significantly reduced NPK accumulation from heading to maturity and at whole maturity stage.
- Intervention effect Late shading (L3) lowered final grain yield by 10.91%–18.47% compared with no shading.
- Intervention effect Late shading (L3) had a reduced effect on root system, nutrient absorption and yield compared with early shading (L2).
- Association With increasing nitrogen level under L2 and L3, root oxidation ability and root dry weight increased significantly.
- Association With increasing nitrogen level, NPK accumulation increased significantly from jointing to maturity.
- Association With increasing nitrogen level, final yield and nitrogen use efficiency improved significantly.
- Intervention effect Nitrogen fertilizer could partially offset the impact of low light stress on NPK absorption and grain yield.