Arafa, Arafa Emam. <br/><br/>
Interactin between nitrogen and potassium fertilizers and their effect upon yield and quality of potato  [microform] / 
 التفاعل بين الأسمدة النتروجيينية والبوتاسية وتأثيرها على محصول وصفات البطاطس. 
Arafa Emam Arafa. 
 -  1966. 
 - 106, 4 leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (Ph.D.) -- Ain-Shams University, 1966. 
<br/><br/>Includes bibliographical references (leaves 95-106) 
<br/><br/><br/>Microfiche. <br/>Cairo, Egypt : <br/>ASUNET, <br/>2 microfiche : negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Potatoes--Fertilizers.<br/>Nitrogen fertilizers.<br/>Potassium fertilizers.<br/>Potatoes--Yields.<br/>Potatoes--Quality.