1897.] 



PUBLIC DOCUMENT — Xo. 38. 



19^ 



Medium Green So// Bean. 

 Yield of Crop {1896). 



PlAT8. 



Whole 



Crop 



(Pounds). 



Plat 1, . 

 Plat 2, . 

 Plat 3, . 

 Plat 4, . 

 Plat 5. . 



680 

 773 

 717 



7.')2 

 742 



Beans 

 (Pounds). 



254 

 233 

 262 

 252 

 247 



Straw, 



etc. 



(Pounds). 



426 

 540 

 455 

 500 

 495 



Percentage 

 of Beans. 



37.20 

 30.14 

 36.54 

 33.51 

 31.94 



Percentage 



of 

 Straw, etc. 



62.80 



69.86 

 63.46 

 66.49 

 68.06 



Sumiminj of Yield of Crops {1S90 to 1896). 



[Pounds.] 



Conclusions. 



From the previous statement of comparative yields for 

 average successive years we find that the plat receiving dis- 

 solved bone-black leads in yield during the first two years 

 while the third, fourth, fifth and sixth years the plats re- 

 ceiving phosphates insoluble in water are ahead, phosphatic 

 slag being first, with South Carolina floats second. 



The following statement regarding the phosphoric acid 

 applied in the case of each plat, and also the amount re- 

 moved from them by the crops raised, shows approximately 

 how much the former is still stored up in the soil in each 

 plat, not considering the original inherent amount in the 

 soil at the beginning of the trial : — 



