FARM PRACTICE IN THE CULTIVATION OF CORN. 
31 
Practicall} 7 no cover crops are grown in this region. Both the 
white and yellow dent varieties of corn are grown. The principal 
troublesome weeds for this section are foxtail, smartweed, cocklebur, 
morning-glory, and huttonweed. 
SURVEYS IN TAMA COUNTY, IOWA. 
Tama County is located in east-central Iowa and is a typical corn- 
growing region. The soil is principally of the silt-loam type and is 
very productive. The country generally is gently rolling, but some 
parts of this county are rather hilly. This rolling condition with a 
loamy type of soil affords good natural drainage except in the bot- 
toms, which are practically all tile drained. The land is usually not 
too steep for the profitable use of improved machinerv. (Table 
XIV.) 
Table XIV. — Tillage practices with corn in Tama County, Iowa, showing depth 
of plowing, implements used in order of use, number of times each is used, 
and normal yield of the crop. 
[In columns 3, 4, and 6 to 9 the figures show the order in which the implement was used on the several 
farms; as, 1 = first working or cultivation; 2 = second working or cultivation, etc.] 
<o 
to 
> 
o 
ft 
o 

ft 
cd 
ft 
Tillage after plowing 
and before planting. 
Tillage after planting. 
CO 
CO 
3 . 
Harrow. 
CO 
tOO 
.5 
1 
< 
o 
c3 
& 
O 
o 
£ 
ft 
2-horse. 
Total cultivations. 
£2 
CD 
Farm No. 
CO 
ft 
o 
A 
M 
ft 
CO 
Cultivator. 
CD 
s 
i 
ft 
Sco 
f* CD 
CD Q 
o 
So 
o 
3 
CD 
T3 
> 
o 
2 
CO 
ft 
O 
> 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
■1 
1) 
1 
5 
5 
5 
4 
5 
5 
4 
5 
5 
5 
5 
6 
6 
4 
6 
5 
4 
6 
4 
3 
5 
7 
4 
6 
6 
3 
2 
3 
1 
1,2 
1 
1,2 
3 
3 
1,2 
"T 
i 
i 
i 
1,2 
1 
1,2 
1 
..... 
1,2 
1 
1 
1,2 
1,2,4 
1,3 
1,2,4 
2 
3,4 
2,3,4 
3 
1,2 
1,2 
3,4 
1,2 
2 
2 
2 
2,3 
3,4 
2 
3,4 
2,3 
1,2 
2,3 
3 
2 
2 
3,4 
4 
3 
4 
2 
4 
4 
3 
3 
3 
4 
2 
2 
2 
2 
3 
4 
2 
4 
3 
2 
3 
3 
2 
2 
4 
1,2 
1 
1,2 
""i,~2" 
1,2 
1,2 
1,2,3 
1,2,3 
1,2 
1,2 
1,2 
1,2 
1,2 
1,2 
1 
1,2 
1,2 
1,2 
1,2 
1,2 
1,2 
i' 
1,2 
3,4,5 
2 to 5 
3,4,5 
4,5 
3 to 6 
3,4,5 
3 to 6 
4 to 7 
4,5,6 
3,4,5 
3 to 6 
3,4,5 
3 to 6 
3 to 6 
3 to 6 
2,3,4 
3,4 
3 to 6 
3,4,5 
3 to 6 
3,4,5 
3,4,5 
1 to 4 
2,3,4 
3 to 6 
2 
1 
2 
3 
2 
2 
2 
3 
3 
2 
2 
2 
2 
2 
2 
1 
2 
2 
2 
2 
2 
2 

1 
2 
3 
4 
3 
2 
4 
3 
4 
4 
3 
3 
4 
3 
4 
4 
3 
3 
4 
3 
4 
3 
3 
4 
3 
4 
5 
5 
5 
5 
6 
5 
6 
7 
45 
2 
40 
3 
45 
4 
1,2,3 
65 
5 
63 
6 
60 
7 
45 
8 
4(1 
9 :. 
6 45 
10 
5 
6 
5 
6 
6 
6 
4 
5 
6 
5 
6 
5 
5 
4 
4 
6 
45 
11 
35 
12 . 
48 
13 
30 
14. 
35 
15 
45 
16 
20 
17 
5 
40 
18... 
50 
19 
45 
20.. 
50 
21 
55 
22 
30 
23... 
40 
24 
40 
25 
60 
Farms using, 
92 
100 
...... 
92 
100 
4 
4 
96 
Average. . 
5.1 
3.4 
5.3 
46. 6 
1 
