Khalil, Hassan E. <br/><br/>
Response of maize to N fertilization following sunflower and preceding winter crops  [electronic resource]. 
 استجابة الذرة الشامية للتسميد النتيتروجينى عقب عباد الشمس والمحاصيل الشتوية السابقة. 

 - p.11-19 
<br/><br/>Includes references. 
<br/><br/> A two summer seasons investigation, 2006/2007 and 2007/2008, was conducted to study the effect of sugar beet, wheat and faba bean (as preceding winter crops) on sunflower, as a ftrst summer crop and on maize, which was supplied with 90 (=N1), 105 (=N2), 120 (=N,) and 135 kg N/fed (=N4), as a second summer crop. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Corn--Fertilization.<br/>Corn--Yields.<br/>Plants--Effect of nitrogen on.<br/>Nitrogen fertilizers.<br/>Crop rotation