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SubCulture-M is a biological inoculum containing a wide diversity of endo and ecto mycorrhizal fungi that colonize plant roots. These beneficial fungi form a fine network of thread-like strands that serve as an extension of the plant's root system. Use on any type of plant and with any growing method - soil, or hydroponic. SubCulture-M can be applied throughout the life of your plants from seed germination through harvest. It may be used with SubCulture-B to create a diverse microbial community beneficial for plant health.