Risk, Mohamed Ali Mohamed. <br/><br/>
Effect of rate and time of nitrogen fertilizer application on yield, chemical constituents of fiber and seeds and some other agronomic characters in Egyptian cotton  [microform] / 
Mohamed Ali Mohamed Risk. 
 -  1974. 
 - 228, 9 leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (Ph.D.)-- Al-Azhar University, 1974. 
<br/><br/>Includes bibliographical references (leaves 211-228). 
<br/><br/><br/>Microfiche. <br/>ASUNET, <br/>Ain Shams University, <br/>4 microfiches : negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cotton--Fertilizers.<br/>Cotton fiber--Composition.<br/>Cotton--Seeds.