Liming for improved crop production in the humid tropics - an overview [soil acidity]. A seminar paper - delivered to the Faculty of Agriculture, Sokoine University of Agriculture, Morogoro Tanzania and to the research staff of the Regional Research Centre, Kasama, Zambia, Nov.-Dec. 1984.

agricultural lime aluminio aluminium calcio calcium cereales cereals chaux agricole disponibilidad de nutrientes fosforo humid tropics magnesio magnesium manejo del suelo manganese manganeso mise en valeur du sol nutrient availability oligoelementos ph phosphore phosphorus soil management soja soybeans sulfate sulfatos sulphates trace elements tropiques humides zea mays