Assessment of soil nutrient balance :  approaches and methodologies / 

 - Rome :  Food and Agriculture Organization of the United Nations,  2003. 
 - x, 87 p. :  col. ill., col. maps ;  30 cm. 
<br/><br/><label>ISBN: </label>9251050384 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil fertility.<br/>Crops<br/>Crops and soils.
<br/><br/><label>Dewey Class. No.: </label>631 ASN 2003 A006 Or.