52 



BULLETIN 



Amounts of water-soluble salts recovered from corn and potatoes 

 growing upon manured and unmanured ground Continued. 



From this table it will be seen that, at 60 and 65 days from 

 planting, both corn and potatoes carry in their sap notable 

 amounts of potash. Moreover, on each and every soil type and 

 for both crops more potash has been recovered from the soils 

 to which the manure had been applied. From the manured 

 ground, too, have come the largest yields and the potash recov- 

 ered from the soil has been shown to rise and fall with the 

 yields. 



