Claim · model-written summary
N rates may affect grain yield by varying the number of panicles per square metre.
- Taxon
- rice
Oryza sativat0 - Treatment
- N ratese4
- Outcome
- number of panicles/m 2e4
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“N rates appeared to affect grain yield by causing variations in the number of panicles/m 2”
t0“rice growth”
Title
Effect of nitrogen rates on rice growth and biological nitrogen fixation
R. Carreres; R. González Tomé; J. Sendra; et al. The Journal of Agricultural Science 1996. doi:10.1017/s002185960007845x
Other claims from this paper (9)
- Association Nitrogen fixation correlated positively with cyanobacteria abundance in rice fields.
- Association Nitrogen fixation correlated negatively with the amount of N fertilizer applied.
- Intervention effect Grain yield increased with increasing N fertilizer amounts up to 70 kg N/ha.
- Association Leaf chlorophyll readings at end of tillering correlated positively with panicle number.
- Intervention effect Increasing N fertilizer rates significantly increased N uptake of rice.
- Intervention effect Increasing N fertilizer rates decreased apparent N recovery and N use efficiency of rice.
- Association Rice removed more N than was applied as fertilizer, except at 140 kg N/ha.
- Association The N balance differences correlated positively with N fixation values, suggesting a contribution of N fixation to rice production.
- Recommendation Rational use of biological N fixation with inorganic N could reduce N fertilizer input by about 50% without loss of productivity.