AGRICULTURAL EXPERIMENT STATION. 



37 



Bag 2. 

 Bag 3. 



Bag 4. 



Bag 5. 

 Bag 7. 

 Bag 8. 

 Bag 9. 

 Bag 10 



Dissolved bone black, 



Dissolved bone black, 

 ^ Muriate of potash, 

 r Dissolved bone black, 

 * •] Muriate of potash, 

 ( Sulphate of ammonia, 



Fine ground bone, 



Same as Bag 2. 



Same as Bag 3. 



Same as Bag 4. 



Same as Bag 5. 



20 lbs. 



Experiment of S. L. Holbrook, Brunswick. Soil, sandy, 

 exhausted, had not been plowed for forty years. Crop, potatoes. 





1 



Fertilizer Applied. 



No fertilizer. 



9 



2 Dissolved bone black. 



400 



_! 5 Dissolved bone black 400 



' I Muriate of potash 100 



r Dissolved bone black 400 



4X Muriate of potash. . llOO 



i (_ Sulphate of ammonia 100 



5 Fine ground bone 400 



6 No fertilizer 



7 Dissolved bone black 400 



_ C Dissolved bone black 400 



^ll Muriate of potash ;100 



C Dissolved bom 



J V Muriate of pot 



I ( Sulphate of an 



Dissolved bone black 400 



9;.^ Muriate of potiish 100 



immonia 100 



Yield per plot. Yield per acre. 



a 



3 



o 

 » 



St 



10 Fine ground bone 40( 



11 Superphosphate 4*0 



26.0 

 71.0 



67.0 



105.0 



37.0 

 23.0 

 60.0 



61.0 



109.0 



41.0 

 159.0 



a 

 3 

 o 



(9 



a 



CO 



48.0 

 35.0 



5.6 



54.0 



35. 



41.8 



37.0 



46 



59.0 



38.0 

 71.0 



a 

 s 

 c 



a 



3 

 J3 



bo 



•J 



7t.O 8.6 



106.0 23.6 



18.5 23.3 



159.0 35.0 



J 



72.0 12.3 



64.8 7.6 



97.0 20.0 



3 



a 



CO 



16.0 

 11.6 



17.1 



18.0 



11.6 

 13.9 

 12.3 



107.0 20.3 15.3 



168.0 36.3 



I 

 79.0 13.6 



23 53. 



19.6 



12.6 

 23.6 



o 



XI 

 on 



3 



O 



24.6 

 35.2 



39.5 



53.0 



24.0 

 21.6 



31.3 



-■■J 



SB 



35.6 



56.0 



26.2 

 76.6 



The cost per acre of these fertilizers is given for the benefit of those who wish to studr the 

 results of the folio-wing experiments from a financial point of view. These figures include 

 only the eost of the naaterials delivered in Orono, the small expense ol mixing, and the freight 

 paid for re shipping to the various experimenters not being taken into account The prices 

 which the Station paid for these materials are lower than the retail prices quoted for small 

 lots, but are applicable to lots of several tons. 



Bag 2 $ 6.-50 per acre. 



Baff .3 9.00 



Bag 4 1300 



Bags 7.60 



♦Complete fertilizer. 



