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Field Survey Summary Tables – Mixed Grassland Ecoregion
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Table 41. 2009 irrigated barley in the Mixed Grassland Ecoregion (42 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Wild oats
55.7
16.5
29.7
2.8
5.0
32.6
51.6
2
Redroot pigweed
25.7
8.3
32.4
3.1
12.0
58.6
36.8
3
Lamb's-quarters
29.4
10.6
36.1
2.4
8.1
35.8
35.5
4
Kochia
48.3
11.1
23.0
1.3
2.8
14.6
34.1
5
Wild buckwheat
51.0
12.1
23.7
0.8
1.6
5.2
32.1
6
Green foxtail
24.9
5.2
20.8
0.9
3.4
28.8
18.1
7
Canada thistle
28.0
3.4
12.3
0.5
1.9
10.0
14.8
8
Dandelion
21.8
3.7
17.0
0.4
1.6
7.4
12.2
9
Alfalfa
9.8
3.1
31.8
0.5
5.4
19.2
9.6
10
Perennial sow-thistle
7.4
2.7
36.4
0.4
5.7
15.6
7.8
11
Stinkweed
10.9
2.4
22.4
0.2
1.8
2.8
6.9
12
Persian darnel
2.6
2.6 100.0
0.4
15.2
15.2
6.2
13
Quack grass
7.0
1.2
17.3
0.3
3.8
7.4
5.0
14
Pale smartweed
7.6
0.9
11.5
0.1
1.6
3.8
3.8
15
Wild mustard
2.6
1.9
75.0
0.1
5.6
5.6
3.8
16
White mustard
2.2
1.3
60.0
0.2
9.4
9.4
3.5
17
Canola (Argentine)
4.5
1.3
30.0
0.1
2.1
2.2
3.3
18
Round-leaved mallow
7.6
0.8
10.6
< 0.1
0.5
0.6
3.2
19
Shepherd's-purse
4.5
1.2
27.5
0.1
1.8
3.0
3.1
20
Tartary buckwheat
5.2
0.4
7.5
0.1
1.0
1.4
2.2
21
Foxtail barley
2.6
0.4
15.0
< 0.1
1.2
1.2
1.3
22
Annual sow-thistle
3.1
0.2
5.0
< 0.1
0.2
0.2
1.0
23
Sunflower species
2.2
0.2
10.0
< 0.1
0.8
0.8
1.0
24
Smooth brome
2.6
0.1
5.0
< 0.1
0.4
0.4
0.9
25
Barnyard grass
2.6
0.1
5.0
< 0.1
0.4
0.4
0.9
26
Wheat
2.2
0.1
5.0
< 0.1
0.4
0.4
0.8
27
Russian thistle
2.2
0.1
5.0
< 0.1
0.2
0.2
0.7