Stagmeyr, E. <br/><br/>
The Use of Potash in Tropical & Sub-Tropical Crops 

 - Agriculture Department,The Dominions Potash Supply Co., Ltd.,  41, Eastcheap, London, E.C.3.  1930 
 -  p.32:pic.:ill. 
<br/><br/><label>Universal Decimal Class. No.: </label>631.83  / DOAs