Khatab,Khatab Abd El-Baky El-Sayed. <br/><br/>
Effect of different forms and rates of nitrogen fertilization on the soil pollution by nitrate and its accumulation in potato and economics of export  [microform]/ 
 تأثير الصور و المعدلات المختلفة للتسميد الآزوتى على تلوث التربة بالنترات و تراكمها فى محصول البطاطس و اقتصاديات التصدير. 
Khatab Abd El-Baky El-Sayed Khatab. 
 -  2001. 
 - 148,3Leaves:  ill.;  30 cm. 
<br/><br/>Thesis (M.S.)--Ain Shams University,2001.+PDF 
<br/><br/>Includes bibliographical references (leaves 124-148) 
<br/><br/><br/>Microfiche. <br/>Cairo,Egypt: <br/>ASUNET, <br/>3 microfiches:negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Potatoes--Marketing.<br/>Nitrogen fertilizers.<br/>Soil pollution.<br/>Potatoes--Fertilizers.