TY - BOOK AU - Mohamed,Atef Fathalla TI - Effect of soil amendments on nodulation and nitrogen fixation in certain Egyptian soils PY - 1992/// KW - Soil amendments KW - Nitrogen KW - Fixation N1 - Thesis (M.S.)--Ain Shams University, 1992; Includes bibliographical references (leaves 80-89); Microfiche; ASUNET; Ain Shams University; 2 microfiches : negative ER -