100 



BOARD OF AGRICULTURE. [Pub. Doc. 



First Course of Botation, 



Second Course of Rotalioii. 



Some of the gains in the latter years of the rotation were 

 doubtless due in a measure to using a portion of the ferti- 

 lizer in the drill and in some degree also to the lime, which 

 increased the percentage of tubers of large size, even when 

 no marked increase in the total crop was caused. The great 

 improvement is considered to be due principally to the 

 improved physical condition of the soil and to the increase 

 in the store of immediately assimilable plant food. 



The following are the results with the winter rye, in yields 

 of straw and grain per acre : — 



First Course of Rotation, 



Second Course of Rotation. 



Plot 11, . 

 Plot 14, . 

 Plot 13, . 



26.83 

 23.13 

 23.75 



