Perrenoud, S <br/><br/>
Potassium and plant health 

 - Switzerland  International Potash institute  1990 
 - 365p.  21cm 
 - IPI research topics No.3 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture and related technologies<br/>Potassium fertilizers<br/>Fertilizers,soil conditioners,growth regulators<br/>Specific techniques
<br/><br/><label>Dewey Class. No.: </label>631.83  / PER