Mohamed, Hassan El-Banna Osman. <br/><br/>
The combined effect of different land levelling and improved surface irrigation methods on production of onion  [microform] / 
 التأثير المشترك لطرق تسوية التربة والري السطحي المحسن علي أنتاج البصل. 
Hassan El-Banna Osman Mohamed. 
 -  1987. 
 - 62, 1 leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (M.S.)-- Zagazig University, 1987. 
<br/><br/>Includes bibliographical references (leaves 54-62) 
<br/><br/><br/>Microfiche. <br/>ASUNET, <br/>Ain Shams University, <br/>2 microfiches : negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Onions--Irrigation