30 



BULLETIN 219, TJ. S. DEPARTMENT OF AGRICULTURE. 



/2 



/o 

 8 

 6 

 4 



2 



o 



-2 



-■? 



/2 



/O 



8 



6 



4 



2 



0) O 



*Z 



si * 



Q /O 



i e 

 \ 6 



e * 



* 2 

 ft O 

 \-2 



1,2 



ft '° 



* 8 

 6 

 4 

 2 

 O 



-2 

 -4 

 ,2 

 /O 

 8 

 6 



2 



O 



-2 



-4 



/ 2 3 4 S 



•Jl 



/D/rti bas/n 



























































BELLEFOURC/iE 



GARDEN C/TV 



Wc/N 



TLEY 





























































sbOTTSBLUEf 



























































'dalhart 































































W/LUSTQ/y\ 

























































NORTH 



PLAT 



TE 















































1 1 



AMAR/LLO 



















































Subsoiling has not markedly affected the yields, except that at 



Akron it has decreased them. 



Listing has materially increased the yields at Huntley and at 



Dalhart. At the other stations the effect has not been marked. 

 The last half of Table XVIII, illustrated in part in figure 6, presents 



the average relative 

 profits and losses at- 

 tending the growth 

 of corn by different 

 methods at each of 

 the stations . It shows 

 corn to be relatively 

 much less profitable 

 at Belle Fourche, Gar- 

 den City, Dalhart, 

 and Amarillo than at 

 the other stations. 



Scottsbluff is the 

 only station where 

 summer tillage as a 

 preparation for corn 

 has proved the most 

 profitable method. 

 At most of the sta- 

 tions this method has 

 been the least profit- 

 able. Its use has re- 

 sulted in actual loss 

 at the stations of Ju- 

 dith Basin, Dickin- 

 son, Edgeley, Belle 

 Fourche, Hays, Gar- 

 den City, and Ama- 

 rillo. 



It is shown very 

 clearly in figure 6 

 that greater profit has 



been realized from corn after corn than from corn after small grain 



at Akron and North Platte. At Huntley, corn after small grain has 



been more profitable. 



Listing has been tried at nine stations. Except at Scottsbluff and 



Akron, it has been the most profitable method under trial. As has 



been pointed out, the relative profitableness of this method has been 



largely due to its low cost. 



LJ/CK/NSOA 



f 







AKRON 



































































\~ ~ 



\ 

























\ 

























\ 

























\ 

























\ 





















EDGELEr 









haVs 





















































































































\ 

























\ 

























\ 



















Fig. 6. — Graphs showing the average profit or loss in dollars per acre 

 by different methods at thirteen field stations in the Great Plains 

 area. The methods of tillage are indicated by Arabic numerals at 

 the top, as follows: 1, Fall plowing after corn; "2, fall plowing after 

 small grain; S, spring plowing after corn; 4, spring plowing after 

 small grain; 5, summer tillage. 



