ROW SPACING AND POD COUNT - SOYBEANS
The Illinois Agricultural Statistics Service conducts soybean objective
yield surveys each year. Plots are randomly selected from a scientifically
drawn sample of soybean fields, which are visited monthly from about August 1
through harvest, to obtain specific counts and measurements. Data in these
tables are not official estimates but are intended to reflect trends in soybean
production practices.
SOYBEANS: Percentage distribution by row width & average row width,
Illinois, 1988-97
| Year |
Number
of
samples |
Row width (inches) |
Average
row
width |
Pods per
18 sq.
feet |
10.0 and
less |
10.1 - 28.5 |
18.6 - 28.5 |
28.6 - 34.5 |
34.6 and
greater |
| |
Percent |
|
Inches |
|
| 1988 |
185 |
16.8 |
4.9 |
2.7 |
56.2 |
19.4 |
27.2 |
1,127 |
| 1989 |
178 |
18.8 |
5.9 |
3.7 |
48.6 |
23.0 |
26.6 |
1,385 |
| 1990 |
175 |
25.4 |
6.0 |
4.0 |
46.9 |
17.7 |
25.5 |
1,460 |
| 1991 |
196 |
23.6 |
9.2 |
3.3 |
48.7 |
15.2 |
24.6 |
1,450 |
| 1992 |
176 |
33.5 |
7.4 |
6.3 |
41.1 |
11.7 |
22.0 |
1,502 |
| 1993 |
179 |
38.0 |
6.7 |
3.9 |
40.8 |
10.6 |
21.2 |
1,701 |
| 1994 |
185 |
45.6 |
11.4 |
3.0 |
34.6 |
5.4 |
18.4 |
1,636 |
| 1995 |
208 |
57.1 |
10.1 |
2.9 |
26.0 |
3.9 |
16.0 |
1,764 |
| 1996 |
202 |
53.2 |
15.2 |
2.2 |
25.5 |
3.9 |
16.0 |
1,581 |
| 1997 |
211 |
55.2 |
18.5 |
3.1 |
21.1 |
2.1 |
15.1 |
1,709 |
Illinois Agricultural Statistics Service
Annual Summary - 1998 |
Page 57 |
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