Claim · model-written summary
The blue nitrogen index significantly improved prediction accuracy of rice canopy LNC compared with SR(533,565).
- Taxon
- rice
Oryza sativat0 - Outcome
- prediction accuracy of the canopy LNCe1
- Direction
- promoted significantlye1
- Comparator
- SR(533,565)e1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“made the prediction accuracy of the canopy LNC promoted significantly,compared with SR(533,565)”
t0“rice”
Title
A newly developed blue nitrogen index for estimating canopy leaf nitrogen concentration of rice
Weixing Cao Yingyong shengtai xuebao 2010
Other claims from this paper (7)
- Observation In rice, wave bands most sensitive to canopy leaf nitrogen concentration lay in the red, blue and red edge regions.
- Observation Wave bands with the best relationships between rice canopy vegetation indices and LNC were 550-600 nm and 500-550 nm in the green region.
- Observation The ratio index SR(533,565) had the highest determination coefficient (R2) with rice canopy LNC.
- Association The blue nitrogen index R434/(R496 + R401) had a significant linear relationship with rice canopy LNC.
- Method / resource In tests with independent datasets, R434/(R496 + R401) estimated rice canopy LNC with an RMSE of 9.67%.
- Method / resource In tests with independent datasets, R434/(R496 + R401) estimated rice canopy LNC with an RE of 8%.
- Recommendation The authors recommend the blue nitrogen index R434/(R496 + R401) as a good indicator of rice canopy LNC.