Japanese potassium symposium, six papers read at the fourth... 

 - Tokyo :  Potash Research Association,  (1963) 
 - 148 p.  : ilus 
<br/><br/><label>LCCN: </label>16890 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plantas--Nutrición.<br/>Potasa.
<br/><br/><label>Dewey Class. No.: </label>631.83  / J36 1961