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Humic acid (HA) and fulvic acid (FA), key passive fractions of soil organic matter, differ in molecular size and solubility, contributing to long-term carbon sequestration and nutrient exchange, and are extracted using base–acid fractionation. Their characterization provides insights into soil quality, carbon stability, and nutrient availability.

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Humic Acid (HA) and Fulvic Acid (FA) Carbon

  • 章节

  • 发表日期：

    2026年

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  • Santosh Kale,
  • Rakesh S,
  • Pushpajeet Choudhari,
  • Gajanan Sawargaonkar,
  • Ramesh Singh,
  • Mangi Lal Jat

摘要

Humic acid (HA) and fulvic acid (FA), key passive fractions of soil organic matter, differ in molecular size and solubility, contributing to long-term carbon sequestration and nutrient exchange, and are extracted using base–acid fractionation. Their characterization provides insights into soil quality, carbon stability, and nutrient availability.