Plant growth and phosphorus uptake of coffee seedlings through mycorrhizal inoculation

Soil phosphorus (P) availability is a limiting factor for coffee seedling growth. Usually, large amounts of P fertilizers are required, generating nutritional imbalance, increasing production costs, and raising environmental concerns in water pollution. The use arbuscular mycorrhizal fungi (AMF) can enhance plant uptake growth reduce the dose fertilizers. A greenhouse experiment was conducted substrate containing Paleudult soil quartz sand, with low level soluble (1 mg kg-1), to establish effect AMF inoculation Rhizoglomus fasciculatum on (Coffea arabica L. cv. Colombia) seedlings under three levels solution (0.002, 0.02, 0.2 L-1). colonization significantly reduced when contents increased. Shoot dry weight foliar concentration were increased by 0.02 L-1; these effects lower at L-1 null 0.002 P. Results showed that play an important role as long content maintains intermediate level. At lowest level, response ineffective, while highest application unnecessary