The first project was carried out between 1996 and 2000, in which different plots were mycorrhizae and sampled at plantation frames ranging from 3x3 to 7x7 m.
Controlled mycorrhization was carried out in these plantations and the wood production, chestnuts and mushrooms was monitored. It was found that the wide frames produced an excellent use of the land, a lower need for future maintenance and an optimisation in the production of wood, chestnuts and Boletus Edulis.
Chestnut production meant that for years the chestnut tree was known as the bread tree in Galicia. These productions, together with those of edible mushrooms, make chestnut groves the most profitable agroforestry ecosystem in Galicia, achieving yields of 5,500 €/ha/year in plantations of 7x7 m in 15 years.
To achieve these yields it is essential to use chestnut hybrids mycorrhizae with species such as Boletus edulis and selected grafted for the production of quality chestnuts, with a good calibre and conservation, aptitude for peeling and without partitioning.
