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About product and suppliers:
        Alibaba.com offers 1,318 horticultural grade products. About 1% of these are organic acid, 1% are antibiotic and antimicrobial agents, and 1% are immune function agents. 

A wide variety of horticultural grade options are available to you, such as free samples, paid samples. 

There are 1,318 horticultural grade suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Turkey, which supply 80%, 18%, and 1% of horticultural grade respectively. 

Horticultural grade products are most popular in Eastern Asia, Southeast Asia, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 163 with ISO9001, 57 with ISO14001, and 13 with Other certification.