Construction and UAV-based inversion of integrated nitrogen diagnosis index for cotton using multispectral imagery.

Front Plant Sci · 2026 · PMC13036123 · PMID 41923937

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highly significantno p-value reported

The absolute correlation coefficients between LNWupper and NGBDI, NGI, and NDRE ranged from 0.6 to 0.8, with NGI and NDRE showing absolute correlation coefficients exceeding 0.75 and demonstrating highly significant relationships.

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