Department of Rural Engineering;
Faculty of Agronomy and Forestry Engineering;
Universidade Eduardo Mondlane;
Maputo 257 (Mozambique);
Department of Agriculture;
Food and Environmental Sciences;
Univ er sit a Politecnica delle Marche;
Ancona 60131 (Italy);
Department of Soil Science and Agricultural Chemistry;
Universidad de Santiago de Compostela;
Lugo 27002 (Spain);
Department of Materials;
Environmental Sciences and Urban Planning;
Universita Politecnica delle Marche;
Ancona 60131 (Italy);
Centro di Ricerca Viticoltura ed Enologia;
Gorizia 34170 (Italy);
Instituto de Biodiv ersidade Agraria e Desenvolvimento Rural;
Universidad de Santiago de Compostela;
Lugo 27002 (Spain);
acid; soil; nutrient; use; effciency; organic; amendment; plant; growth; potential; enzyme; activity; soil; fertility; soil; pH;