Biofertilizers in agriculture /
Biofertilizers in agriculture / N. S. Subba Rao - Second edition - Rotterdam : A. A. Balkema, 1992 - ix, 208 pages : illustrations ; 22 cm
Includes bibliographical references and index
9061914051 (paperback)
Biofertilizers --Organic fertilizers and manures
Biofertilizers --Fertilizers and improvement of the soil
S654.5 S83