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Field Survey Summary Tables – Ecodistricts 812 & 806
80
Table 73. 2009 irrigated broad-leaved annual crops in the Brooks Plain & Berry Creek Plain Ecodistricts
(812 & 806) in the Mixed Grassland Ecoregion (18 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Wild buckwheat
72.2
14.4
20.0
0.7
0.9
2.0
49.1
2
Green foxtail
33.3
11.1
33.3
1.4
4.1
15.8
45.3
3
Wild oats
50.0
10.3
20.6
1.0
2.1
14.0
43.3
4
Redroot pigweed
38.9
7.2
18.6
0.9
2.3
13.4
34.0
5
Kochia
50.0
5.3
10.6
0.2
0.4
1.4
23.5
6
Dandelion
33.3
5.3
15.8
0.3
1.0
4.4
20.9
7
Barnyard grass
11.1
4.7
42.5
0.7
6.5
11.8
20.7
8
Lamb's-quarters
33.3
4.2
12.5
0.2
0.7
2.6
17.7
9
Wheat
16.7
2.5
15.0
0.3
1.7
2.0
12.0
10
Barley
5.6
2.5
45.0
0.4
7.4
7.4
11.3
11
Canada thistle
11.1
0.6
5.0
< 0.1
0.3
0.4
4.1
12
Chickweed
5.6
1.1
20.0
0.1
1.0
1.0
3.8
13
Quack grass
5.6
0.3
5.0
0.1
1.6
1.6
3.2
14
Stork's-bill
5.6
0.6
10.0
< 0.1
0.6
0.6
2.7
15
Cleavers
5.6
0.6
10.0
< 0.1
0.4
0.4
2.5
16
Foxtail barley
5.6
0.3
5.0
< 0.1
0.2
0.2
2.0
17
Japanese brome
5.6
0.3
5.0
< 0.1
0.2
0.2
2.0
18
Stinkweed
5.6
0.3
5.0
< 0.1
0.2
0.2
2.0
Table 74. 2009 irrigated canola in the Brooks Plain & Berry Creek Plain Ecodistricts (812 & 806) in the
Mixed Grassland Ecoregion (14 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Wild buckwheat
92.9
18.6
20.0
0.9
0.9
2.0
59.1
2
Wild oats
57.1
11.4
20.0
1.2
2.2
14.0
47.2
3
Green foxtail
35.7
10.0
28.0
1.3
3.6
15.8
41.5
4
Kochia
64.3
6.8
10.6
0.3
0.4
1.4
27.9
5
Dandelion
42.9
6.8
15.8
0.4
1.0
4.4
25.1
6
Barnyard grass
7.1
5.0
70.0
0.8
11.8
11.8
21.4
7
Lamb's-quarters
42.9
5.4
12.5
0.3
0.7
2.6
21.2
8
Redroot pigweed
35.7
3.6
10.0
0.2
0.5
1.2
15.7
9
Barley
7.1
3.2
45.0
0.5
7.4
7.4
14.1
10
Wheat
14.3
1.8
12.5
0.2
1.5
2.0
8.9
11
Canada thistle
14.3
0.7
5.0
< 0.1
0.3
0.4
4.8
12
Chickweed
7.1
1.4
20.0
0.1
1.0
1.0
4.6
13
Quack grass
7.1
0.4
5.0
0.1
1.6
1.6
3.9
14
Foxtail barley
7.1
0.4
5.0
< 0.1
0.2
0.2
2.3
15
Japanese brome
7.1
0.4
5.0
< 0.1
0.2
0.2
2.3