' The proceedings are highly recommended for libraries to purchase they are a valuable source of references for those interested in problems of crops and natural vegetation on acid soils. ' Plant breeding 108 1992 ' The well edited book is a valuable text for everyone dealing with problems of productivity in acids soil; as suggested by the title, subjects covered in the proceedings will be directed to reasearchers concerned with soil fertility and encironment as well as to scientists interested in the latest developments on a wide range of topics related to soil acidity and plant growth. ' Agrochimica 36:3 1992