36 a 



EXPERBIEXT STATION. 



[Jan. 



of phosphoric acid is high and that of potash low. For the past 

 nineteen years the rotation has been two years grass and two 

 years corn. This year the field was in grass, and the combina- 

 tion containing the higher percentage of potash gave more hay 

 than the mixture containing the lower percentage of potash. 

 This result is similar to results obtained in previous years, ex- 

 cept that owing to the severe drought of the last season we did 

 not harvest a rowen crop. 



North Soil Test. 

 In this experiment there are 13 plots which have received 

 the same fertilizer treatment for twenty-six years. The west 

 half of each plot has received three applications of lime. In 

 1899 and 1904 lime w^as applied at the rate of 1 ton per acre 

 and in 1907 at the rate of Vo ton per acre. This year the crop 

 was mixed grass and clover. The following table gives the yields 

 per acre on the different plots : — 



Yield per Acre (Pounds). 



' Average. 



