Soil fertility and fertilizers :  an introduction to nutrient management / 
John L. Havlin ... [et al.]. 
 - 6th ed. 
 - Upper Saddle River, N.J. :  Prentice Hall,  c1999. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0136268064 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crops--Nutrition.<br/>Fertilizers.<br/>Soil fertility.<br/>Cultures--Nutrition.<br/>Engrais et amendements.<br/>Sols--Fertilit�.
<br/><br/><label>LC Class. No.: </label>S633  / .S715 1999 
<br/><br/><label>Dewey Class. No.: </label>631.422  / SOI