Claim · model-written summary
Urea and controlled-release urea showed no obvious difference in grain yield, N concentration and removal N of aboveground biomass.
- Taxon
- rice
Oryza sativae1 - Treatment
- CRUe2
- Outcome
- grain yield, N concentration, and removal N of aboveground biomasse2
- Direction
- No obvious differencee2
- Comparator
- ureae2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The AV applied with CRU and urea predominately occurred at the rice flooding period, which accounted for 83.2 to 86.6% and 95.5 to 96.9% of AV at the entire rice season”
e2“No obvious difference was observed between urea and CRU treatments concerning grain yield, N concentration, and removal N of aboveground biomass”
Title
Huihui Wang; Abeer M. Hegazy; Xia Jiang; et al. Agronomy Journal 2016. doi:10.2134/agronj2015.0295
Other claims from this paper (9)
- Intervention effect Ammonia volatilization with urea was 61.4 higher than with controlled-release urea in 2010–2011.
- Intervention effect Ammonia volatilization with urea was 57.3% higher than with controlled-release urea in 2011–2012.
- Observation Ammonia volatilization under controlled-release urea occurred mainly in the rice flooding period, at 83.2 to 86.6% of rice-season volatilization.
- Observation Ammonia volatilization under urea occurred mainly in the rice flooding period, at 95.5 to 96.9% of rice-season volatilization.
- Association Rainfall significantly reduced ammonia volatilization during rice growth.
- Association Rainfall before N fertilization could significantly increase ammonia volatilization in the wheat season.
- Recommendation Controlled-release urea should be recommended for use during the rice flooding period to decrease the ammonia volatilization rate.
- Intervention effect Controlled-release urea is an effective technique in minimizing ammonia volatilization compared with urea.
- Recommendation Irrigation and rainfall should be considered when designing N fertilization programs in rice to decrease ammonia volatilization.