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About product and suppliers:
        Alibaba.com offers 11,238 powder humic acid products. About 87% of these are organic fertilizer, 1% are organic acid, and 1% are other organic intermediates. 

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

There are 11,238 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 Southeast Asia, Mid East, and South Asia. 

You can ensure product safety by selecting from certified suppliers, including 3,465 with ISO9001, 384 with ISO14001, and 225 with FSC certification.