International symposium on the role of sulphur, magnesium and micronutrients in balanced plant nutrition 

 - [Place of publication not identified] :  [Publisher not identified],  [Date of publication not identified] 
 - x, 418 pages :  illustrations ;  26 cm 
<br/><br/>Includes bibliographical references  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plants --Nutrition
<br/><br/><label>LC Class. No.: </label>QK710 I58