EXPERIMENT STATION REPORTS. 



21i 



Table III gives the yields of corn 1906, oats 1907 and wheat 1908, 

 after completion of the ten-year period of special cropping. 



TABLE III. — Yield per acre of plots in uniform cropping after ten years in rota- 

 tion of crops. 



Plot numbers. 



1 



3 



5 



7 



17 



19 

 21 

 23 

 25 

 27 



29 

 31 

 34 

 36 

 60 



62 

 64 

 66 

 68 

 70 

 72 



Rotation during 10 jcar period. 



Wheat and clover 



Wheat, clover and corn . . . 

 Wheat, clover and potatoes 



Wheat, continued 



Beans, continued, with rye . 



Beans, continued, with rj'e . 



Com, continued 



Orchard grass, continued . . 

 Orchard grass, continued . . 

 Com, continued 



Fallow 



Fallow 



Clover, continued 



Wheat, continued 



Wheat, continued 



Potatoes, wheat and clover . 

 Com, wheat and clover ... 



Wheat and clover 



Wheat, continued 



Fallow 



Clover, continued 



1906, 

 1907,1908. 



total 



com. oats 



and wheat. 



Pounds. 

 7560 

 6430 

 7550 

 5260 

 7140 



6470 

 4530 

 9050 

 9260 

 6860 



7510 

 7910 

 6720 

 5120 

 5530 



7020 

 8050 

 7370 

 6140 

 5470 

 7290 



Table IV is compiled from Table III and gives the average yields 

 of certain plots which had received the same treatment. 



TABLE IV. — Average yield per acre of duplicate plots planted in uniform crops, 

 during 1906-'07-08, after 10 years in rotation of crops. 



Plot niunbers. 



Rotation during 10 year period. 



1906, 

 1907,1908. 



total 



com, oats 



and wheat. 



1 and 66 



3 and 64 



Sand 62 



7. 36, 60 and 68.... 

 29, 31 and 70 



Wheat and clover 



Wheat, clover and corn . . . 

 Wheat, clover and potatoes 



Wheat, continued 



Fallow, continued 



Pounds. 

 7460 

 7240 

 7280 

 5597 

 6590 



As the duplication of some of the treatments were on adjacent plots 

 and some on plots varying in fertility and some distance from each 

 other, it was not possible to include data from all the plots in the above 

 table. 



In Table V (compiled from Table III) is given the yields from the 

 various treatments in the first series of plots. 



