TY  - BOOK
AU  - Swelim,Diaa EL-Din Mohamed Mohamed
TI  - Studies on symbiotic N2 fixation under soybean in Egyptian soils 
PY  - 1987///
KW  - Nitrogen
KW  - Fixation
KW  - Soybean
KW  - Egypt
N1  - Thesis (M.S.)--Zagazig University, 1987; Includes bibliographical references (leaves [98]-109); Microfiche; Cairo, Egypt; ASUNET; 2 microfiches : negative
ER  -