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        Alibaba.com offers 15,017 humic acid powder products. About 87% of these are organic fertilizer, 1% are water treatment chemicals, and 1% are feed grade proteins. 

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

There are 15,018 humic acid powder suppliers, mainly located in Asia. The top supplying country or region is China, which supply 100% of humic acid powder respectively. 

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Minimum Order: OK