Tag: Ore source humic acid enhances crop stress resistance

Formation of humic acid

Effect of humic acid on crops and soil

At present, the source humic acid is an organic substance formed during the crustal change. The main elements are carbon, oxygen, hydrogen, nitrogen and sulfur. The carbon content is the highest. It is worth noting that the organic matter is not necessarily humic. Acid, but humic acid must be a good organic matter. Ore source […]

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