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About product and suppliers:
        Alibaba.com offers 312,523 humic acid products. About 3% of these are organic fertilizer, 1% are nitrogen fertilizer. 

A wide variety of humic acid options are available to you, such as humic acid, seaweed, and manure. You can also choose from powder, liquid, and granular. As well as from quick, slow, and controlled. And whether humic acid is free samples, or paid samples. 

There are 302,397 humic acid suppliers, mainly located in Asia. The top supplying countries are Vietnam, China (Mainland), and India, which supply 59%, 38%, and 1% of humic acid respectively. 

Humic acid products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 47,732 with Other, 44,134 with ISO9001, and 2,373 with ISO14001 certification.