Swelim, Diaa EL-Din Mohamed Mohamed. <br/><br/>
Studies on symbiotic N2 fixation under soybean in Egyptian soils   [microform] / 
 دراسات على تثبيت آزوت الهواء الجوى تكافليا لنباتات فول الصوبا فى الأراضى المصرية. 
Diaa EL-Din Mohamed Mohamed Swelim. 
 -  1987. 
 - 109 leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (M.S.)--Zagazig University, 1987. 
<br/><br/>Includes bibliographical references (leaves [98]-109). 
<br/><br/><br/>Microfiche. <br/>Cairo, Egypt : <br/>ASUNET, <br/>2 microfiches : negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen--Fixation.<br/>Soybean--Egypt.