The mycorrhization of oaks and other truffle species (lindens, pines, hazelnuts, etc.) remains quite mysterious. First of all, your soil must be suitable for truffle growing. The cultivation of truffles apparently succeeds best in a draining soil, rich in active limestone, aerated, with good biological activity.
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If this is the case, it is then a question of inoculating spores from small pieces of truffles which will germinate to produce truffle mycelia (Tuber melanosporum for example), and which after natural association with the young roots of your trees ( symbiosis) will become the mycorrhizae carrying your future truffles. We are used to mycorhizing truffle trees as soon as the seed germinates (from the acorn for the oak), which remains the best method for planting a plot. But in the case of trees already in place that are not mycorrhized or whose mycorrhization would not have worked, you still have the option of using Fertil'canne® by perforating the soil 15 to 20 cm deep, always at the plumb with the foliage, where the young roots are located, ready to associate with the truffle mycelium.
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The mycorrhization method still holds many secrets, yet we now know more about it:
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The biological cycle of the truffle lasts several months:
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It begins with the germination of spores contained in large quantities in the truffle itself (more than 1 million spores in 1g of truffle). From the end of winter, these spores will germinate to give a mycelium which after symbiotic association with the very young roots of the tree will produce the famous mycorrhizal filaments on which will be born the future truffles.
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At the end of spring or even at the beginning of summer, two compatible mycelia will mate to form a truffle (this is the sexual reproduction phase). It is only 6 to 8 months later that you can harvest the adult truffle.
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It is therefore necessary to promote the sexuality of the truffle and for this to inoculate the soil, at the level of the young roots of the tree, with new spores. These will germinate then to produce a mycelium which, if it proves to be compatible with the other mycelia, will allow sexual multiplication to occur, leading to the production of truffles, then truffles if they meet the favorable conditions to reach maturity.
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Fertil'canne allows you to carry out this operation by bringing very small pieces of truffles to different points around your tree, just above the foliage, where the young roots are developing. You can also bring these spores in liquid form, in a plastic bottle, after crushing truffles that are unsuitable for sale (too ripe, badly shaped, starting to rot, etc.). You can also use frozen truffles, the spores withstand freezing temperatures with no problem.
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Intervene after a good rain in order to fulfill the conditions for a good germination of your spores, and to facilitate the penetration of your fertil'canne in the ground (approximately 15cm).
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Happy mycorrhization!