32 



The Bulletin 



Table IV- 



Average Results for Seven Years 



Effect of Different Quantities of Potash. 



The experiments reported in Table 4 were arranged to show the effect 

 on the yield of corn and stover of varying quantities of potash, the nitro- 

 gen and phosphoric acid remaining constant. On one plat only one- 

 half the normal quantity of potash was applied or % per cent in the 

 fertilizer mixture, or 2.2 pounds of potash per acre. On two other 

 plats two and three times the normal quantities were given, or 9 and 



