BULLETIN 901, IT. S. DEPARTMENT OF AGRICULTURE. 



offers opportunity for several direct comparisons of the results of 

 these methods. 



ON HILL 

 E 



LP 



Ic 



1 B 



72 



| A 





i o 



Lc 



1 B 



71 



Ia 





L c 



Lb 



2 



1 A 



1 c 



1 B 



1 



1 A 



u \ 



1 B 



A 



lc 



1 



1° 



1 A 



|B 



72] 



10 



|d 



1 D 



Q 



3«| 



1 B 



1* 1 



I 1 



1 o 



I.e. 



3/\ 



1 B 



1 A 



1 o 



Lc 



fO\ 



1 B 



I* 1 



1 D' 



lc 



/e\ 



1 B 



[a 





|e 



1 o 



lc 



ii\ 



1 B 



[a 





|f 





Ie 



1 D 



V2\ 



1 c 



1 B 



Ia 1 



1 P 



OATS 



lc \ 



1913 FALLOW SERIES 



Fig. 1. — Diagram of the experimental plats in the main field at Edgeley, N. Dak., 

 showing the location of the crop rotations with reference to each other. 



The location of the rotations with reference to each other is 

 shown in figure 1, which is a plat sheet of the main field. Each rota- 

 tion is designated by a number and each plat in the rotation by a 



