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About product and suppliers:
        Alibaba.com offers 12,175 powder humic acid products. About 88% of these are organic fertilizer, 1% are feed grade amino acids. 

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

There are 12,175 powder humic acid suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of powder humic acid respectively. 

Powder humic acid products are most popular in South Asia, Mid East, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 4,138 with ISO9001, 506 with ISO14001, and 242 with Other certification.