URAL ACADEMY BONN-POPPELSDORF (Potatoes). 



Single Potato Leaves. 



ma 



Hj^ 



W. - ^4 Kt. 



riiiitaHiiMiiii 



Potash Starvation: Dressed with suffi- 

 cient Nitrogen, Phosphoric Acid and 

 Lime — Potash withheld 



Dressed annually since 1896 with Com- 

 plete Manure containing 89 and 107 Ihs 

 Potash respectively 



Bonn-Poppehdorf Table 15 



