Nkwiine, Charles. Effect of soybean-maize cropping rotation on soybean rhizobial popul ation and soybean nodulation/ by Charles Nkwiine. - Kampala : Makerere University, 1990. - xiii, 94 p.; 28 cm. Thesis (M. Sc.) - Makerere University, 1990. Includes bibliographical references (p. 73-89) Subjects--Topical Terms: Soybean--------Crop rotation-------- Dewey Class. No.: 631.582