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Field Survey Summary Tables – Ecodistrict 828
95
Table 94. 2009 irrigated broad-leaved annual crops in the Foremost Plain Ecodistrict (828) in the Mixed
Grassland Ecoregion (42 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Kochia
44.2
4.7
10.7
0.3
0.6
2.0
62.9
2
Wild buckwheat
32.9
5.5
16.7
0.3
1.0
5.0
62.8
3
Round-leaved mallow
23.3
4.5
19.3
0.3
1.2
2.4
50.6
4
Wheat
4.1
1.2
30.6
0.2
5.6
8.0
21.5
5
Wild oats
11.0
1.5
13.5
0.1
0.8
1.2
18.4
6
Canada thistle
4.1
0.6
15.6
0.2
4.7
7.0
16.8
7
Lamb's-quarters
11.3
1.0
9.2
< 0.1
0.4
0.6
13.9
8
Wild tomato
7.0
0.5
6.9
0.1
0.8
1.4
9.6
9
Sunflower species
4.6
0.7
15.0
0.1
1.3
1.6
9.4
10
Foxtail barley
4.9
0.4
7.7
< 0.1
0.7
1.0
6.6
11
Field bindweed
2.3
0.3
15.0
< 0.1
1.6
1.6
5.1
12
Prostrate pigweed
2.6
0.4
15.0
< 0.1
0.6
0.6
4.2
13
Downy brome
2.3
0.1
5.0
< 0.1
1.2
1.2
3.5
14
Showy milkweed
2.3
0.2
10.0
< 0.1
0.8
0.8
3.5
15
Stinkweed
2.6
0.1
5.0
< 0.1
0.2
0.2
2.4
16
Russian thistle
2.6
0.1
5.0
< 0.1
0.2
0.2
2.4
17
Corn
1.8
0.2
10.0
< 0.1
0.4
0.4
2.3
18
Dandelion
2.3
0.1
5.0
< 0.1
0.2
0.2
2.1
19
Goat's-beard
2.3
0.1
5.0
< 0.1
0.2
0.2
2.1
Table 95. 2009 irrigated canola in the Foremost Plain Ecodistrict (828) in the Mixed Grassland Ecoregion
(16 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Wild buckwheat
34.3
8.4
24.4
0.6
1.7
5.0
76.7
2
Kochia
56.8
7.3
12.9
0.4
0.7
2.0
75.7
3
Round-leaved mallow
34.3
7.3
21.2
0.5
1.4
2.4
68.7
4
Wild tomato
13.1
1.0
7.5
0.1
1.0
1.4
17.0
5
Wild oats
14.7
1.1
7.8
0.1
0.6
1.0
16.5
6
Lamb's-quarters
13.1
1.6
12.5
0.1
0.5
0.6
15.9
7
Sunflower species
5.8
1.2
20.0
0.1
1.6
1.6
11.9
8
Foxtail barley
5.8
0.3
5.0
0.1
1.0
1.0
7.1
9
Stinkweed
6.6
0.3
5.0
< 0.1
0.2
0.2
5.2
10
Russian thistle
6.6
0.3
5.0
< 0.1
0.2
0.2
5.2