AGRICULTURAL EXPERIMENT STATION. 



71 



ibs: J 



20 lbs 

 20 lbs 



5 

 20 lbs 



5 



5 

 20 lbs 



Bag 2. Dissolved bone black, 



f> o \ Dissolved bone black, 



" ■ I Muriate of potash, 



( Dissolved bone black, 

 Bag 4. * ■< Muriate of potash, 



( Sulphate of ammonia, 

 Bag 5. Fine ground bone. 

 Bag 7. Same as Bag 2. 

 Bag 8. Same as Bag 3. 

 Bag 9. Same as Bag 4, 

 Bag 10. Same as Bag 5. 



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

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



Fertilizer Applied. 



No fertilizer 



Dissolved bone black. 



C Dissolved bone 1 

 \ Muriate of potas 



Dissolved bone black . 

 ish .... 



Dissolved bone black . 

 ' Muriate of potash . . . . 

 Sulphate of ammonia . 



Fine ground bone . . 



N"o fertilizer 



Dissoved bone black . 



400 



Dissolved bone black 

 Muriate of potash 



Dissolved bone black. 



Muriate of potash . . 



. Sulphate of ammouia . 



Fine ground bono 

 Superphosphate.. 



400 



400 



400 ; 

 100; 



400; 

 100 

 100 ' 



400 



400 



Yield per plot. Yield peracre 



1.^ 



26.0 

 71.0 



67.0 



48.0 



35.0 



5.5 



105.0 54.0 



37.035. 



I 

 23.041.8 



60.037.0 

 61.046.0 



109.059.0 



41.038.0 

 159.071.0 



74.0 

 106.0 



18.5 



159.0 



72.0 

 64.8 

 97.0 



107.0 



168.0 



79.0 

 23.0 



8.6 

 23.6 



23.3 



35.0 



12.3 



7.6 



20.0 



20.3 



36.3 



13.6 

 53 



16.0 

 11.6 



17.1 



18.0 



11.6 

 13.9 

 12.3 



H 



24.6 

 35.2 



39.5 



53.0 



24.0 

 21.6 

 31.3 



15.3 35.6 



19.6 



12.6 

 23.6 



66.0 



26.2 

 76.6 



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

 the results of the following experiments from a financial point of view. These figures include 

 onlj the cost of the materials delivered in Orono, the small expense of mixing and the freight 

 paid for re-shippiiig 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. 



Bags 9.00 " 



Bag 4 13.00 " 



Bag 5 7.60 " 



♦Complete fertilizer. 



