48 



EXPERIMENT STATION. 



[Jan. 



loss as compared with the no-nitrogen plots are shown in the 

 following table : — 



It will be noted that the first crop was exceptionally heavy. 

 The large yield was without doul)t due in considerable measure 

 to the weather conditions, which were exceptionally favorable 

 for hay in this locality. Such yields, however, must have been 

 impossible but for the liberal fertilization which the field has 

 received. 



It will be noticed that even the no-phosphate plots have 

 given a yield averaging nearly 4 tons per acre at the first cutting. 

 The highest yields were afforded by the dissolved bone black, 

 raw bone and dissolved bone meal, between which there was 

 relatively little difference ; but the fact that the yield on the 

 plot receiving apatite was but little inferior to the yield on these 

 best plots, while with such crops as cabbages in past years it 

 has been hardly one-half as great, taken in connection with the 

 relatively large yield of the no-phosphate plots, sufiiciently 

 emphasizes the relative unimportance of supplying phosphoric 

 acid in soluble form for such a crop as mixed grass and clover. 

 The soluble phosphates in this experiment when cabbages were 

 the crop gave yields about two to five times as great as the no- 

 phosphate or the insoluble phosphate plots, while this year the 



