Claim · model-written summary
Three split topdressings gave the highest rice grain yield and fertilizer-N recovery.
- Taxon
- rice
Oryza sativae0 - Treatment
- Fertilizer N topdressed in three split applications (TD3SA)e0
- Outcome
- rice grain yields and highest percent recovery of fertilizer Ne0
- Direction
- higheste0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilizer N topdressed in three split applications (TD3SA) resulted in the highest rice grain yields and highest percent recovery of fertilizer N in the rice plant”
Title
Effect of Application Method and Dicyandiamide on Urea‐Nitrogen‐15 Recovery in Rice
R.J. Norman; B.R. Wells; K.A.K. Moldenhauer Soil Science Society of America Journal 1989. doi:10.2136/sssaj1989.03615995005300040046x
Other claims from this paper (7)
- Intervention effect Preplant fertilizer with DCD gave slightly lower grain yield than three split applications.
- Intervention effect Preplant fertilizer with DCD gave similar dry matter yield, total N uptake and fertilizer-N recovery to split applications.
- Intervention effect Preplant fertilizer without DCD performed worse than the other treatments.
- Intervention effect Subsurface preplant N incorporation gave greater fertilizer-N uptake than broadcast incorporation.
- Intervention effect Subsurface placement did not produce more total N use or grain than broadcast placement.
- Mechanism DCD apparently retained more fertilizer N as ammonium, reducing loss via denitrification after flooding.
- Intervention effect DCD increased uptake and yield effectiveness of preplant N in dry-seeded rice.