S.-X. Li <br/><br/>
Food security and soil quality : Chapter 12  Comprehensive Management of Nutrients in Dryland Soils of China for Sustainable Agriculture / 
by S.-X. Li and Z.-H. Wang ; edited by Rattan Lal and B.A. Stewart. 
 - Boca Raton, FL :  CRC Press,  2010 
 - xiii, 100 pages :   illustrations 
 - Advances in soil sciences .
<br/><br/> Original from book  
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781439800577 (acidfree paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Food production<br/>Food security.<br/>Soils--Quality.