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About product and suppliers:
        Alibaba.com offers 11,493 humic acid powder products. About 88% of these are organic fertilizer, 3% are potassium fertilizer, and 1% are acidity regulators. 

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

There are 11,462 humic acid powder suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Turkey, which supply 98%, 1%, and 1% of humic acid powder respectively. 

Humic acid powder products are most popular in South Asia, Southeast Asia, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 3,489 with ISO9001, 398 with ISO14001, and 225 with FSC certification.