Mycoplant Fosk is a biological inoculant based on mycorrhizal fungi of the genus Glomus and plant growth-promoting rhizobacteria (PGPR). The microorganisms provide an extra supply of water and nutrients to the plant. The rhizobacteria fix atmospheric nitrogen in the soil, solubilise phosphates to make them available to the plant and produce plant growth hormones (gibberellins and cytokinins) that stimulate plant and root growth.