Claim · model-written summary
Delayed nitrogen topdress at panicle initiation reduced rice grain yield in 2004 (significant at 0.05).
- Taxon
- rice
Oryza sativat0 - Treatment
- delayed N application at PISe0
- Outcome
- grain yielde0
- Direction
- reducede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“stage of rice”
e0“delayed N application at PIS reduced grain yield in 2004 and increased milled-rice protein content in both years significantly at 0.05 probability level”
Title
Min-Hi Kim; Byun‐Woo Lee The Korean Journal of Crop Science 2006
Other claims from this paper (9)
- Intervention effect Delayed nitrogen topdress at panicle initiation increased milled-rice protein content in both years (significant at 0.05).
- Observation The optimum nitrogen topdress timing at panicle initiation from pooled data was 28 days before heading.
- Observation The optimum topdress timing at panicle initiation was 30 days before heading when no nitrogen was applied at tillering.
- Observation The optimum topdress timing at panicle initiation was 27 days before heading for 3.6 and 7.2 kg N/10a at tillering.
- Observation The optimum topdress timing at panicle initiation for cultivar Hwaseongbyeo was 27 days before heading.
- Observation The optimum topdress timing at panicle initiation for cultivar Daeanbyeo was 29 days before heading.
- Intervention effect Earlier nitrogen topdress at panicle initiation generally resulted in lower milled-rice protein content.
- Association The highest grain yield was expected when topdress at panicle initiation was applied as shoot N concentration started to drop below about 23 mg/g.
- Recommendation The authors conclude that the currently recommended topdress time (24 days before heading) at panicle initiation in Korea should be reconsidered for higher grain yield and better rice quality.