Claim · model-written summary
Nitrogen-use efficiency of rice was highest under ridge tillage at 31% of applied N fertilizer among the three tillage regimes.
- Taxon
- rice
Oryza sativat0 - Treatment
- ridge tillagee0
- Outcome
- Nitrogen‐use efficiencye0
- Direction
- higheste0
- Value
- 31%e0
- Comparator
- three tillage regimese0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen‐use efficiency was 31% of applied N fertilizer for ridge tillage, which was the highest among the three tillage regimes”
t0“rice”
Title
Improving nitrogen‐use efficiency by using ridge tillage in rice paddy soils
Chuan Qin; Alan L. Wright; Lihua Ma; et al. Soil Use and Management 2020. doi:10.1111/sum.12675
Other claims from this paper (10)
- Intervention effect Nitrogen uptake by rice differed significantly between the tillage regimes.
- Intervention effect Nitrogen-use efficiency was lowest under conventional tillage at 17%.
- Intervention effect Soil residual N was significantly higher (21%) under ridge tillage than under the flooded paddy field or conventional tillage.
- Intervention effect Total gaseous N loss was highest under ridge tillage at 28%.
- Intervention effect Total gaseous N loss was lowest under conventional tillage at 17%.
- Observation Ammonia volatilization accounted for the largest proportion of gaseous loss from N fertilizer under all three tillage regimes.
- Observation The largest loss of applied N was with water (runoff and leaching), accounting for 20% of applied N under ridge tillage.
- Observation The largest loss of applied N was with water (runoff and leaching), accounting for up to 54% of applied N under conventional tillage.
- Mechanism Ridge tillage changed soil micro-topography and water regimes, which the authors say led to better N conservation.
- Recommendation The authors recommend adopting ridge tillage, which they expect to significantly improve NUE in rice paddy fields.