ILLINOIS FIELD EXPERIMENTS 



457 



TABLE 85. CROP YIELDS PER ACRE FROM THE OLDEST ILLINOIS EXPERIMENT 

 PLOTS: URBANA SOIL EXPERIMENT FIELD 



1 Legume catch crops first grown in 1904 to benefit 1905 crops. 



2 Manure and phosphorus first applied to plot 58 for 1904 crop, but to plots 38 

 and 48 for 1905 crop. 



3 Cowpea hay; the clover failed. 



