128 



STORRS AGRICULTURAL EXPERIMENT STATION. 



perhaps from the acid residue left behind when the nitrogen 

 was taken from the sulphate of ammonia. It was also thought 

 that such an acidity might be corrected b}' lime. In accord- 

 ance with these hypotheses, 40 pounds of air slacked lime was 

 applied in 1898 on each section in series A, but none on series 

 F. The purpose of applying lime upon all the plots in the 

 series was that the comparison might be made as usual between 

 the yields from the different plots, and the purpose of applying 

 lime to one series of sections and not to the other was that the 

 effects of the lime might be observed in comparing the yields 

 from the two series upon which the conditions were similar in all 

 respects except for the application of the lime. A comparison 

 of yields from the sections with the lime with those from the 

 sections without lime is given beyond in the discussion of the 

 3ields of corn. 



Table 65. 

 special nitrogen experiments on white flint corn 



(SERIES A). 



Weighl and cost of fertilizer per acre, total crop, and increase of 



crop over that of 7iothing plots. 



