Claim · model-written summary
Initial pH, soil texture and pH buffering affected ammonia volatilization at the intermediate N rate.
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValueQualifier
Verbatim
t0“aerobic rice”
e0“At the intermediate N rate all three components (initial pH, soil texture and pH buffering) affected ammonia volatilization”
Title
V. R. Haden; J. Xiang; S. Peng; et al. European Journal of Soil Science 2011. doi:10.1111/j.1365-2389.2010.01346.x
Other claims from this paper (8)
- Intervention effect Increasing urea rates increased ammonia volatilization.
- Intervention effect Increasing urea rates decreased rice germination.
- Observation The critical ammonia toxicity level for germinating rice seeds was approximately 7 mg N kg −1.
- Association Initial pH and soil texture influenced ammonia volatilization without added N.
- Association Soil texture and pH buffering drove ammonia volatilization at the largest N rate.
- Association Initial pH had an insignificant role in volatilization at the largest N rate.
- Association For soils above pH 6.0, low clay content, cation exchange capacity and buffer capacity greatly increased excessive volatilization risk.
- Recommendation Initial pH, CEC, soil texture and BC should be used to assess site-specific urea toxicity risk in aerobic rice.