The role of phosphorus in agriculture / 
editorial committee, F. E. Khasawneh,E. C. Sample, E. J. Kamprath. 
 - Madison :  American Society of Agronomy,  1980. 
 - xviii, 910 p. :  ill. ;  24 cm. 
<br/><br/> "Proceedings of a symposium held 1-3 June 1976 at the National Fertilizer Development Center, Tennessee Valley Authority, Muscle Shoals, Alabama, Sponsored by the Tennessee Valley Authority. 
<br/><br/>Includes bibliographies and index. 
<br/><br/> Open access. 
<br/><br/><label>LCCN: </label>8018564  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Phosphatic fertilizers--Congresses.<br/>Plants--Effect of phosphorus on--Congresses.<br/>Soils--Phosphorus content--Congresses.<br/>Phosphate ndustry--Congresses.