14 
BULLETIN" 242, U. S. DEPARTMENT OP AGRICULTURE. 
known factor, and it is hardly fair to compare these yields with those 
secured by other methods. 
A study of the yields by fall and spring plowing where milo fol- 
lows milo shows no appreciable difference in the value of these two 
methods. Both methods have given good profits. 
Table VIII. — Summary of yields and digest of the cost of production of milo oy 
different tillage methods and crop sequences at Dalhart, Tex., 1909 to 1914, 
inclusive. 
Fall plowed. 
Spring 
plowed 
Yields, values, etc. 
(average per acre). 
After milo 
(1 plat). 
After small 
grain (2 plats). 
after milo (1 
plat). 
milo (1 plat). 
(1 plat). 
Grain. 
Stover. 
Grain. 
Stover. 
Grain. 
Stover. 
Grain . 
Stover. 
Grain. Stover. 
Yield for the year: 
1909 
Bush. 
2.8 
26.6 
19.1 
28.6 

55.5 
Lbs. 
1,660 
6,660 
4,270 
4,650 
1,750 
4,980 
Bush. 
3.8 
21.2 

33.1 

( 2 ) 
Lbs. 
3,000 
6,945 
755 
2;965 
2,275 
( 2 ) 
Bush. 
3.3 
26.4 
5.9 
39.7 

51.7 
Lbs. 
3,990 
6,950 
2,000 
4,610 
1,800 
5,040 
Bush, i Lbs. 
3.8 1,590 
'50.4 8,380 
23.6 ! 3.330 
22,4 i 2.770 
1,250 
48.4 4,130 
Bush. ' Lbs. 
14. 7 4, 980 
1910 
1911 
27.8 
52.4 
110.3 
45.3 
3,530 
6,500 
3,600 
5,500 
1912 
. 1913 
1914 
Average 
22.1 
3,995 
11.6 
3,188 
21.2 
4,065 
24.8 3,575 
36.6 j 5.938 
Crop value, cost, etc. : 
$8.84 
$7.99 
$4.64 
$6.38 
$8.48 
$8.13 
$9.92 j $7.15 
$14 64 1 §11-88 
Total value 
Cost 
$16. S3 
7.44 
$11.02 
7.44 
$16.61 
7.06 
$17. 07 
5.93 
$26. 52 
12.31 
Profit 
9-39 
3.58 
9- 55 
11-14 
14-21 
1 Estimated yield; harvested in bulk for ensilage. 
2 Discontinued in 1914. 
MILO AT AMARILLO. 
Seven crops of milo have been grown at Amarillo, Tex., and grain 
yields were secured from six of them. Milo after small grain on 
fall plowing has given better average results than any other tillage 
method used at this station. General observation as to yields indi- 
cates that crop sequence has less influence than other factors. The 
yields of milo grown on fall-plowed land following small grain do 
not greatly exceed those obtained from different methods on land 
continuously cropped to milo. In fact, with the exception of sum- 
mer tillage, there is little variation among the average yields by all 
the different methods under trial. Listing has produced the smallest 
quantity of stover, but this is of no great importance, as high grain 
yields are preferred to high stover yields. Four years out of the 
six milo after milo by spring plowing has given heavier yields than 
milo after milo by fall plowing, and one year out of three it has 
exceeded the yield on summer-tilled land. It is hardly fair to com- 
pare the practice of summer tillage at this station with other tillage 
methods, as it has been under trial only three years. In 1913. when 
because of the extreme drought all other methods failed even to set 
