Nutrients release from powder phonolite mediated by bioweathering actions

Laene de Fátima Tavares, André Mundstock Xavier de Carvalho, Luis Gustavo Brogliato Camargo, Samarina Gabriele de Fátima Pereira, Irene Maria Cardoso Abstract Silicate rock powders have been appointed as possible nutrient alternative sources which might enhance the agricultural sector sustainability. However, the application of those materials directly in soil presents as main limitations the low content and solubility of the mineral nutrient sources. In this perspective, the aim of the present study was to evaluate, in a bioweathering perspective, the conjunct application potential of phonolite with organic composts over the nutrients ...