AGRICULTURAL EXPERIMENT STATION. 



43 



Average. 



No fertilizer 



Dissolved bone black, containing phosphoric acid. 



( Dissolved bone black, I Containing phosphoric acid and 

 I Muriate of potash, | potash. 



C Dissolved bone black, 1 Containing phosphoric acid, pot- 

 ^ Muriate of potash, ash and nitrogen. 



( Sulphate of ammonia, 1 



Fine ground bono, containing phosphoric acid and nitrogen. 



24.5 



34.5 



45.5 



30.0 



10.2 



14.3 



18.9 



12.5 



Experiment of J. A. Tolman, Rockland. 



Soil gravelly loam, had been cropped for ten years without 

 manure. 



Crop, barley, sown for fodder. 



Plot. 



1 

 2 



6 

 6 

 7 



10 



Fertiliz»r Applied. 



No fertilizer 



Dissolved bone black. 



Dissolved bone black, 

 Muriate of potash. . . . 



Dissolved bone black 

 Muriate of potash. . . . 

 Sulphate of ammonia . 



Fine ground bone. . . . 



No fertilizer 



Dissolved bone black. 



Dissolved bone black 

 Muriate of potash... 



C Dissolved bone black. 

 ^ Muriate of potash. . . . 

 C Sulphate of ammonia . 



Fine ground bone 



C N J- 



lbs. 



400 



400 : 

 100; 



400- 

 100 ] 

 100 ' 



400 



400 



400 

 100 



400 



100 

 100 



400 





>i a. 



lbs 

 136 



99 

 81 



129 



110 



90 



116 



108 



114 



86 



p. 



-a 



lbs. 

 2720 



1980 

 1620 



2580 



2200 

 1800 

 2320 



2160 



2280 

 1720 



