FUNGI-SOIL (Trichoderma harzianum and Purpuricillium lilacinus (Syn Paecilomyces lilacinus)) is used for soil improvement as a phosphorus solubilizer and bicontroller of soil pathogens such as Rhizocotnia, Gaeumannomyces and Polymyxa, as well as nematodes such as Meloidogyne and Pratylenchus mainly and nematodes that affect the root system of plants.