Claim · model-written summary
Rice K use efficiency decreased significantly with potassium application.
- Taxon
- rice
Oryza sativat0 - Treatment
- Potassium Applicationt0
- Outcome
- K use efficiencye0
- Direction
- decreasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K use efficiency decreased significantly despite the fact that the amount of total K uptake increased.”
t0“Rice in Response to Potassium Application”
Title
Nutrient Uptake and Use Efficiency of Irrigated Rice in Response to Potassium Application
Hong Hu 土壤圈(英文版) 2004
Other claims from this paper (12)
- Intervention effect NPK significantly affected rice grain yield relative to NP.
- Intervention effect NPK significantly affected nutrient harvest index relative to NP.
- Mechanism Potassium was inferred to improve transfer of N and P from vegetative tissue to panicles.
- Intervention effect Rice N and P use efficiencies did not respond strongly to potassium.
- Observation Total K uptake increased.
- Observation Varieties differed significantly in nutrient uptake and use efficiency.
- Observation Hybrid rice had superior N and P uptake and use efficiency to inbred rice.
- Mechanism Non-exchangeable soil K was identified as an important source for rice.
- Intervention effect Potassium application caused annual decline in available soil K.
- Intervention effect Potassium application increased non-exchangeable soil K.
- Recommendation The authors concluded that 100 kg ha-1 K per season was insufficient to match K output.
- Recommendation Efficient rice K management should use a K input/output balance.