Eid, Mohamed T. <br/><br/>
Significance of soil organic phosphorus to plant growth  [microform]/ 
Mohamed T.Eid. 
 -  1950. 
 - 101  leaves :  ill ;  30 cm. 
<br/><br/>Thesis (Ph.D )--Iowa state college University, 1950. 
<br/><br/>Includes bibliographical references (leaves 95-100) 
<br/><br/><br/>Microfiche. <br/>Cairo, Egypt : <br/>ASUNET, <br/>2 microfiches : negative. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soils--Phosphorus content<br/>Crops and soils.<br/>Growth (Plants)