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Entramado
versão impressa ISSN 1900-3803
Resumo
CALLEJAS-CANARTE, Gina Vanessa; CISNEROS-ROJAS, Carlos Adolfo e CAICEDO-BEJARANO, Luz Dary. Solubilizing capacity of aluminum phosphate by rhizospheric fungi isolated from an Andisol Colombian. Entramado [online]. 2018, vol.14, n.2, pp.218-227. ISSN 1900-3803. https://doi.org/10.18041/1900-3803/entramado.2.4745.
Based on Typic Melanudands grow with coffea (Coffea Arabica Caturra variety) resulting from the Cauca department, fungi with solubilization capacity of aluminum phosphate were isolated (Al-P), from which two microorganisms with greater solubilization activity were selected, identified as strain UNH!: Mycelia sterilia y UNH2: Penicillium sp. Selected fungi were evaluated through the Pikovskaya liquid (PVK) with (Al-P), under two conditions, with stirring (A method) and repose with aireation ( B method), for fifteen days.
When comparing the results, significant statistical differences were found in the percentage of soluble phosphorus, method A presented better results with a percentage of 73.8% compared to 62% with the strain UNH1 and in smaller proportion with the strain UNH2 49% and 44 %. The increase in biomass was greater with method B and the pH of the culture media did not show significant differences, with an average pH of 2.7.
Palavras-chave : Phosphate solubilizing fungi; soil; organic acids; agitation; aeration; pH.