*2.5.2 Fungal biofertilizers*

Biofertilizers using fungi as main ingredients are called fungal BF. The fungi having symbiotic relationship with plant roots are known as mycorrhizal fungi (MF) which are commonly used in BF. Since MF are more efficient in the uptake of specific nutrients like P, Ca, Zn, S, N, B and are resistant against soil-borne pathogens, they are used to improve efficiency of nutrient exchange and to protect the plants against diseases. Fungal BF use fungi like Trichoderma, endoemycorrhiza, and ectomycorrhiza. As MF help in retaining moisture and increase resistance against root and soil pathogens, they are commonly used. Based on two types of MF, the fungal BF are also divided in two categories as described below.
