32 a 



EXPERIMENT STATION. 



[Jan. 



Considering the relative standing of the different nitrogen 

 fertilizers on the basis of yields per acre, nitrate of soda, as in 

 previous years, stands first. 



On the basis of increase as compared with the no-nitrogen 

 plots for the entire period of the experiment (twenty-five years) 

 the nitrate of soda also ranks first. 



The crop of grass and clover was not cut, but on September 9 

 the following condition was noted : on the limed area of each 

 plot there was a very luxuriant growth, — practically all clover. 

 There was no apparent difi^erence in the amount of clover on 

 the nitrogen and no-nitrogen plots. 



On the unlimed area of all plots, except those receiving 

 nitrate of soda, the stand of clover was much inferior to that 

 on the limed area. The stand of clover on the unlimed area 

 of the plots receiving sulfate of ammonia was much inferior 

 to that on the unlimed areas of any of the other plots. The 

 stand of clover on the limed area of the sulfate of ammonia 

 plots was about as good as that on the limed area of the nitrate 

 of soda and no-nitrogen plots. The unlimed area of the nitrate 

 of soda plots seemed to produce practically as good a stand of 

 clover as the limed areas. 



Comparison of Muriate and High-grade Sulfate of 

 Potash (Field B). 



The work on this field, where for so many years we have had 

 under comparison the two potash salts, muriate and high-grade 

 sulfate, has been continued. The following table shows the in- 

 creased yields per acre due to the use of the two potash salts : — 



