16 
BULLETIN 242, U. S. DEPARTMENT OF AGRICULTURE. 
27.8 bushels per acre on fall-plowed land following small grain. 
Kafir following small grain has, on the average, given slightly better 
yields of both grain and fodder than it has following kafir. These 
higher yields have doubtless been due to the repeated failure of the 
small-grain crop, which has left the ground partly summer tilled. 
There has been very little difference in the average grain yield by the 
different methods under study. From no method has this average 
yield been sufficient to cover the cost of its production. All methods 
have produced four good crops of forage. The average yield of fod- 
der after fall plowing is above the average of any other method. 
The next highest yield has been after fall plowing following kafir. 
Without exception the value of the forage has exceeded the value 
of the grain produced under all methods studied. Kafir after kafir 
on spring-plowed land has shown the lowest margin of profit, viz, 
64 cents per acre. The greatest net profit per acre has been secured 
by growing kafir after small grain on fall-plowed land. The profit 
by this method is $3.78 per acre. The margin of profit from all 
methods has been small and, on the average, much lower than at 
Dalhart or Amarillo. 
Table X. — Summary of yields and digest of the cost of production of kafir by 
different tillage methods and crop sequences at Garden City, Kans., 1909 to 
191If, inclusive. 
Fall pi 
ov/ed. 
Spring 
plowed 
Yields, values, etc. (average 
per acre). 
After kafir 
(lplat). 
After small 
grain (2 plats). 
after kafir 
(iplat). 
kafir (1 plat). 
Grain. 
Stover. 
Grain. 
Stover. 
Grain. 
Stover. 
Grain. 
Stover. 
Yields for the year: 
1909 
Bush. 

5.0 

27.8 

6.7 
Lbs. 
5,260 
3,880 
680 
5,970 
440 
3,340 
Bush. 

9.6 

25.1 

C 1 ) 
Lbs. 
5,780 
6,800 
1,390 
5,745 
1,430 
C 1 ) 
Bush. 

2.2 

22.5 

3.7 
Lbs. 
4,310 
3.550 
580 
5,400 
680 
2,940 
Bush. 

2.7 

20.6 

3.8 
Lbs. 
4,400 
1910 
3,820 
1911 
580 
1912 
1913 
5,805 
300 
1914 
2,750 
Average 
6.6 
3,262 
6.9 
4,229 
4.7 
2,910 
4.5 
2,943 
Crop value, cost, etc.: 
82.64 
Sfi 59 
$2. 76 
$8.46 
$1.88 1 $5.82 
$1.80 
*5. 89 
Total value 
S9.16 
7.44 
$11.22 
7.44 
$7.70 
7. 06 
$7.69 
Cost 
5.93 
Profit 
1.72 
3.78 
.64 
1.76 
1 Discontinued in 1914. 
A rotation of small grain and kafir is impracticable on account of 
the failure of small grain. Summer tillage should, therefore, be 
given a thorough trial, as it may prove to be the most profitable 
method. Experiments have been started to determine the most prac- 
tical application of summer tillage for the growing of kafir. 
