Ok, heres some info on bennificial fungi when growing marijuana i think you might find useful.
Mycorrhizae are mutually beneficial associations between certain highly specialized fungi and the roots of plants (and trees). In these associations the fungi and the host plant roots grow together in such an intimate relationship as to literally form "fungus-roots" ( mycorrhizae), entities distinctly separate from either the fungi or the roots alone. The roots are roots, the fungi are fungi, and together they from mycorrhizae. The fungi benefit by way of receiving carbohydrates and certain other necessities (for example, vitamins) from their hosts. In turn, the fungi enhance the host roots' ability to absorb nutrients (esp. phosphorus) from the soil. Indeed, in certain cases the fungi literally feed nutrients from the soil to their host root systems. Sometimes the presence of mycorrhizal fungi imparts a degree of protection or resistance against certain root disease microorganisms (e.g., nematodes, fungi). In general, plants and trees with mycorrhizae are healthier than those without.
Mycorrhizal fungi reproduce by means of various kinds of spores. Those of ectomycorrhizal fungi are most frequently produced in aboveground sporophores (mushrooms, toadstools, puffballs, etc.) and are disseminated by the wind. Accordingly, it is usually not long before ectomycorrhizae "reappear" in soil disturbed by practices such as methyl bromide fumigation in forest tree nurseries. Nearby forest and shade trees usually support sufficient ectomycorrhizae (and sporophores of the ectomycorrhizal fungi) to insure recolonization of disturbed soils in a matter of months.
In contrast, the spores of most endomycorrhizal fungi are produced underground in association with their host roots. These spores are not aerially disseminated and, as a result, the build up of endomycorrhizae in disturbed soils is not uncommonly a slow process. Endomycorrhizal deficiencies are occasionally a problem in nurseries where soil is regularly sterilized or fumigated as cultural practice.
Both ectomycorrhizal and endomycorrhizal fungi are moved in infested soils and on (in) the roots of mycorrhizal plants. Both types of mycorrhizal fungi are also capable of vegetative growth from root to root within and between host plants or trees. In trees, mycorrhizal infections are limited to fine, feeder roots less than 1-2 mm in diameter.
I would highly recommend this product if its anything like Advanced Nutrient's Piranha brand fungi.
