Efficient use of fertilizers  

 - London:   Leonard Hill Limited,   1952 
 - ix, 158p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture 
<br/><br/><label>Subjects--Index Terms: </label>Plant nutrients  Soil  
<br/><br/><label>Universal Decimal Class. No.: </label>631.8   / J2