TECHNOLOGY FOCUS - AGRICULTURE - Preferred Method: Cultivating fungi further comprises mixing the material obtained in step (d) with natural compost. The mixture is used as a source of nutrients and minerals for agricultural and horticultural purposes. It has KVE-load of at least 104, 105-106 or 107-108 per gram and a spore concentration of at least 104 or 107-108 per gram. The product from step (c) is subjected to a conditioning treatment between steps (c) and (d). The treatment comprises the conditioning of the product at a temperature of 3-5 degrees C. The product is obtained after step (d) is subjected to a conditioning treatment. The treatment comprises conditioning the product at a temperature of 3-5 degrees C in an atmosphere of CO2 less than 1% (v/v) and O2 greater than 19.2% (v/v) before the mixing with natural compost takes place.Step (b) is carried out at a temperature of 25-35 degrees C.Step (b) comprises at least two sub-steps, where the fungi cultivated in the first sub-step are supplied to the second sub-step, in which the fungi from the second sub-step are further multiplied; where the fungal biomass and the number of fungal spores from the second sub-step are greater than the fungal biomass and the number of fungal spores from the second sub-step. Step (b) further comprises a third sub-step, where the fungi cultivated in the second sub-step are supplied to the second sub-step, in which the fungi from the second sub-step are further multiplied; where the fungal biomass and the number of fungal spores from the third sub-step are greater than the fungal biomass and the number of fungal spores from the second sub-step. The three sub-steps are carried out in a liquid phase.The duration of first, second and third sub-steps is at least 2 days, and the duration of step (d) is 15 days.An organic material having a carbon content of at least 5% is used as the liquid culture medium, comprising molasses, or preferably starch hydrolysate.The solid carrier medium consists of organic by-products e.g., garden and kitchen waste, waste from vegetable markets and the like, and/or wood shavings.The wood shavings are used as the solid carrier medium. They are subjected to a heat treatment prior to step (D).The pH-value in step (B) ranges from 2.5-9.5.The Aw-value is at least 0.90 during step (D).The pure culture of Trichodema harzianum, possibly obtained by transferring a non-pure culture of Trichodema harzianum a number of times, is used as the inoculant material of step (A).A pure culture of Talaromyces flavus, possibly obtained by transferring a non-pure culture of Talaromyces flavus a number of times, is used as the inoculant material of step (A).A pure culture of Arthrobotrys, possibly obtained by transferring a non-pure culture of Arthrobotrys a number of times, is used as the inoculant material of step (A).