Symbiotic interaction in forage crop cultivations: A review

Brazil is an extensive forest plants producer due to the edaphoclimatic conditions though; most part of the soils constituting Brazil's territorial extension possesses features as low fertility mainly in primary nutrients. Intimate relationships on rhizosphere are mandatory to take effect in order to plants capture and assimilate nutritional elements present in the soil such as the microorganisms present in it. Nitrogen fixing bacteria and arbuscular mycorrhizal fungi are responsible for most part of the organic matter decomposition in the soil and availability of essential nutrients to plants through symbiotic relationship. This relationship can be intensified by practices such as biodiversity enrichment and microbial fauna which occurs in agrosilvopastoral system. Results contribute to better comprehension on those systems towards grassland ecosystems and the vast soil living microorganisms contribution that live in it