Humic substances create beneficial stress (eustress) in crops, enhancing photosynthesis, root development, and nutrient and water uptake, helping plants better withstand stress and boosting productivity. They also improve soil health by promoting root exudates that stimulate microbial activity, increase soil water content, and enhance soil structure. These microbes add carbon to the soil when they die, further enriching soil health. While humic substances don’t directly increase water or carbon exchange capacity, their biostimulant effects improve nutrient efficiency, reduce the need for fertilizers (like nitrogen), and promote healthier, more productive crops with less environmental impact.

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