30 
BULLETIN 219, TJ. S. DEPARTMENT OF AGRICULTURE. 
>JL 
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BELLEROURCHE 
garden c/ry 
^HUNTLEr 
SCOTTSBLUER 
'DALHART 
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NORTH ''PLAT 
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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 
/oo^^/^*^^,^o^r. 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. 
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AKRON 
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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; 3, spring plowing after corn; 4, spring plowing after 
small grain; 5, summer tillage. 
