66 



HATCH EXPERIMENT STATION. 



[Jan. 



Annual Supply of Manurial Substances {Pounds). 



The area of the plots is about one-eighth of an acre each. 

 The fertilizers used supply, at the rates per acre : phos- 

 phoric acid, 50.4 pounds; nitrogen, 60 pounds; potash, 

 120 pounds. 



The management of the experiment and results and con- 

 clusions are presented in great detail in our eighth, ninth 

 and tenth annual reports, and to these the student of these 

 experiments is referred. It suffices for our present purpose 

 to call attention to the general results up to the end of the 

 year 1897, which are shown below : — 



Averages of Garden Crops, 1892 to 1897, inclusive. 



