38 



AGRICULTURAL EXPERIMENT STATION. 



Average. 



No fertilizer 



Dissolved bone black, coDtainiiig phosphoric acid. .. 

 Dissolved bone black, 



S Dissolved bone bla< 

 \ Muriate of potash 



C Dissolved bone black, 

 •^ Muriate of potash, 

 C Sulphate of ammonia. 



< Fine ground bone 



Containing phosphoric 

 acid and potash 



Containing phosphoric 

 acid, putush and nitro- 

 gen. ' 



Containing pho.sphoric 

 acid and nitrogen. 



Yield per plot. 



•a 



B 



3 

 o 

 p. 



to 





24.5 



6.1.5 



64.0 



107.0 



98.0 



•a 



P 

 s 

 o 

 a. 



el 

 a 



44.8 



36.0 



48.5 



36 5 



36.5 



c 

 a 



o 

 p. 



o 



69.3 



101.5 



Yield per acre. 



3 

 .P 



bO 



8.2 



21.8 



112.5 21.8 



163.5 35.6 



75.5 



12.9 



s 



a 



CO 



14.5 



11.9 



16.2 



18.8 



12.1 



3 

 .P 



O 



H 



23.1 



33.8 



27.6 



54.4 



25,0 



Experiment of H. L. Leland and W. E. Leland, East Sangerville. 

 Soil, medium cla}^ slate, loam : has been exhausted by cropping 

 for many years without manuring. Previous haj^ crop, one-half 

 ton per acre. Crop, potatoes. Season unfavorable. 



Plot. 



9 

 10 



Fertilizer Applied. 



No fertilizer 



Dissolved bune black. 



fiissolved bone black. 

 Muriate ot potash . . 



Dissolved bone black. 

 Muriate of potash 

 Sulphate of ammonia. 



Fine ground bone . . . . 



No fertilizer 



Dissolved bone black. 



Dissolved bone black. 

 Muriate of potash 



r Dissolved bone black. 

 •? Muriate of pctash 

 ( Sulphate of ammonia. 



Fine ground bone 



p. 



■Hi <- 



bush. 

 65.0 



64.3 

 63.6 



87.3 



63.3 

 41.6 

 51.6 



74.0 



95.0 

 38.6 



