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An LAI-driven spectral critical curve based on the interference-mitigation chlorophyll index for nitrogen diagnosis in winter oilseed rape (Brassica napus L.) under contrasting mulching systems
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DOI：10.1016/j.fcr.2026.110665.png)
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Abstract
En 中文
• IMCI reduced spectral interference from soil, film, and straw backgrounds. • IMCI maintained stable relationships with canopy chlorophyll and leaf nitrogen. • A shared LAI-driven spectral critical curve was stable across mulching systems. • The IMCI-based NNI diagnosed N status and explained relative yield variation.
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