138 



EXPERIMENTS WITH ROOTS AND FORAGE CROPS 



I. Early. 



Fig. 10.— Soy Beans, 1S98. 



V 



2. Medium 



3. Late. 



are recommended as the fertilizers best adapted to its growth, 

 but we find that nitrogen is equally beneficial, especially when 

 no turf is plowed under. In an experiment for testing this, four 

 formulas were used ; two recommended by the Massachusetts 

 Station, one by the Delaware Station, and the fourth com- 

 pounded by ourselves. One-fourth acre plots were used. The 

 following is the composition of the fertilizers used per acre: 



No. I (Mass.), 10,000 lbs. manure; 125 lbs. sulphate potash; 200 lbs. dis- 

 solved bone black. 



No. 2 (Mass.), 320 lbs. nitrate soda; 275 lbs. muriate potash; 550 lbs. dis 

 solved bone black. 



