FERTILIZER CONTROL STATION". 



313 



Mr. Moore's experiment furnishes a good illustration of the profit- 

 able use of commercial fertilizers. As can be seen by calculating 

 the cost of the fertilizers, this cost was not over half the value of the 

 increase of crop in any case. The largest growth, though not the 

 most profitable, was from the complete fertilizer. 



A. P. Starrett, Warren. 



Crop, corn. Soil, cla}' loam, a portion of an old, run-out mowing 



field. 



Plot. 



1 



2 



5 

 6 



7 



8 



9 



10 



Pertilizer Applied. 



No fertilizer 



Dissolved bone black. 



5 Dissolve! 

 \ Muriate 



Dissolved bone black 

 of potash — 



Dissolved bone black. 

 Muriate of potash.. . 

 ssulphate of ammonia 



Fine ground bone. . . . 



No fertilizer 



Dissolved bone black. 



Dissolved bone black. 

 Muriate of potash . .. 



e Dissolved 

 ^ Muriate of 

 ^tiulphate 



Dissolved bone black. 

 )f potash . .. 

 of ammonia 



Fine ground bone 



« »- ^ 



, ID ® 



c .2 o 



O _i 



a;-, tx 



lbs. 



400 



400 

 100 



400 

 100 

 100 



400 



400 



400 

 100 



400 

 100 

 100 



400 



Fodder. 



lbs. 

 1,190 



1,510 

 5,575 



5,245 



630 

 680 

 945 



7,270 



8,085 

 1,530 



