Agronomic Effectiveness of Calcined Soluble Sources of P Fertilizers

Every winter fire strikes out in the Cerrado of Brazil due to climatic conditions of very low air humidity with high temperature burning natural vegetation or harvest residue on fields, and as growers apply fertilizers during winter, it may happen that broadcast fertilizers are affect by fire. Previous tests show decrease in P solubility of P fertilizers burned after field fire and no agronomic information is available under such conditions. Therefore, this project is aimed to investigate the effect of calcination on the solubility of soluble P fertilizers and on biomass yield of plants grown under greenhouse conditions.

IPNI-2014-BRA-65