30 a 



EXPERIMENT STATION. 



[Jan. 



Cabbages. 



These results are in accordance with those of earlier years 

 when a crucifer has been the crop. The largest yields are ob- 

 tained where the mixtures containing phosphoric acid are used> 

 and on all plots except where the phosphoric acid is used alone 

 an application of lime increases the yield. 



South Soil Test. 



This experiment was begun in 1889, and has for its object a 

 study of the effect of the continued use of fertilizers containing 

 single plant-food elements and different combinations of plant- 

 food elements for different crops. The whole field received an 

 application of lime at the rate of 1 ton per a^re in 1899 and 

 again in 1904, at the rate of one-half ton per acre in 1907, and 

 of ground limestone at the rate of 2 tons per acre in 1916. 



The following table shows the yields per acre of corn and 

 stover obtained on the different plots in 1917 and 1915. The 



