Potassium in tropical crops and soils 

 - Berna :  Insternational Potash Institute,  1974 
 - 603 p 
<br/><br/><label>LCCN: </label>25265 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cultivos tropicales.<br/>Potasio--Efecto en plantas.<br/>Suelos--Potasio en.<br/>Suelos--Trópicos.
<br/><br/><label>Dewey Class. No.: </label>631.83  / I5