Tag: Physical

Humic Acid

Physical, chemical, and biological effects of humic acid

The direct effect of humic acid is to promote plant growth and increase crop yield. In addition to the direct effects of humic acid, there are physical, chemical, and biological effects. Physical effect Humic acid improves soil structure; prevents soil cracking and erosion; increases soil water holding capacity, improves cold resistance; makes soil color darker, […]

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