18 
BULLETIN 242, U. S. DEPARTMENT OF AGRICULTURE. 
KAFIR AT AMARILLO. 
The results of seven years with kafir at Amarillo, Tex., are avail- 
able. During this time only two complete grain failures have been 
recorded. While the net profits shown at Amarillo are not as large 
on the average as those obtained at Dalhart, Tex., they are consider- 
ably above those at Garden City, Kans. Kafir after summer tillage 
is the only method that shows a loss, but, as this method has been 
carried on for only three years, it is possible that this loss does not 
represent what might reasonably be expected by this method if it 
were tested for a longer time. The value of kafir following kafir 
on fall-plowed land exceeds that of kafir after kafir on spring-plowed 
land by $1.26 per acre. The largest profit by any method used has 
been obtained with kafir after small grain. For the seven years 
under study this method shows an average profit of $8.21 per acre. 
Table XII. — Summary of yields and digest of the cost of production of kafir by 
different tillage methods and crop sequences at Amarillo, Tex., 1907 to 1914, 
inclusive. 
Fallp 
owed. 
Spring plowed 
| Listed after 
Yields, values, etc. 
(average per 
acre). 
After kafir 
(1 plat). 
After small 
grain (2 plats). 
after kafir 
(1 plat). 
1 kafir 
(2 plats). i 
(1 plat). 
Grain. 
Stover. 
Grain. 
Stover. 
Grain. 
Stover. 
Grain. 
Stover. 
Grain. 
Stover. 
Yields for the year: 
1907 
Bush. 
13.3 
30.8 
1.4 
Lbs. 
7,040 
5,360 
1,513 
Bush. 
16.7 
38.4 
4.6 
Us. 
7,355 
7,020 
3,908 
Bush. 
10.7 
29.2 
1.6 
Lbs. 
4,630 
4,820 
2,026 
Bush. 
11.8 
27.2 
5.3 
Lbs. 
4,730 
4,940 
2,684 
Bush. 
Lbs. 
1908. 
1909 
1910 2 
1911 
21.8 


12.0 
7,280 
5,660 
170 
3,940 
18.9 


6.9 
8,310 
6,020 
755 
4,340 
21.7 


8.3 
4,350 
6,870 
280 
3,790 
8.0 


12.5 
1,500 
5,215 
620 
2,760 
1912 


7.0 
6,160 
1913 
2,240 
1914 
4,880 
Average 
11.3 
4,423 
12.2 
5,387 
10.2 
3,824 
9.3 
3,207 
2.3 
4,427 
Crop value, cost, etc.: 
$4.52 
$8. 85 
$4.88 
$10. 77 
$4.08 
§7. 65 
S3. 72 j $6. 41 
$0.92 
$8.85 
Total value 
Cost 
$13.37 
7.44 
$15. 65 
7.44 
$11.73 
7.06 
$10. 13 
5.93 
S9.77 
12.31 
Profit or loss . . 
5.93 
8.21 
4.67 
4.20 
-2.54 
Only one plat used until 1912. 
2 Station site changed in 1910; yields not used. 
GENERAL DISCUSSION. 
With the exception of the rainfall, which is less at Dalhart, Tex., 
than at Garden City, Kans., and Amarillo, Tex., the climatic condi- 
tions at the three stations under study are very similar. The soils 
of the three stations are of different types, but they are fairly repre- 
sentative of the more important agricultural types of soil to be found 
in the southern Great Plains area. 
