Claim · model-written summary
Increased phosphorus application had no effect on growth and yield of rice in alluvial paddy soil, which is high in available phosphorus.
- Taxon
- rice
Oryza sativat0 - Treatment
- incrcased levels of phosphorus applicationse7
- Outcome
- growth and yield of rice plante7
- Direction
- no_changeinferrede7
- Qualifier
- high content of available phosphoruse7
- Setting
- alluvial paddy soile0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Yield Decrease Resulting from Continual Direct Sowing Culture”
e7“The incrcased levels of phosphorus applications were not effective to the growth and yield of rice plant in this soil due to the high content of available phosphorus which was sufficient for the growth”
e0“in alluvial paddy soil which was high in available phosphorus”
Title
Yoshimasa UEMURA; AKIRA MIYASAKA Japanese Journal of Crop Science 1973. doi:10.1626/jcs.42.116
Other claims from this paper (9)
- Association Available soil phosphorus and rice-plant phosphorus were lower in diluvial than in alluvial paddy soil.
- Intervention effect Heavy phosphorus application increased growth and yield of rice in diluvial soil.
- Intervention effect Continuous direct sowing culture tended to retard growth and yield of rice year by year under different phosphorus application levels.
- Observation The year-by-year retardation tendency was not so remarkable in heavy phosphorus application plots.
- Intervention effect The effect of heavy phosphorus application on rice growth and yield was smaller in transplanting culture than in direct sowing.
- Mechanism The smaller effect of heavy phosphorus application in transplanting is attributed to a difference in phosphorus absorption between transplanting and direct sowing.
- Association The yield decrease under continuous direct sowing occurred only in soils low in available phosphorus.
- Intervention effect Increasing phosphorus application lightened the yield decrease to some degree.
- Observation No yield decrease was found in alluvial paddy soil even under continuous direct sowing culture.