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Field Survey Summary Tables – Eastern Irrigation District
144
Table 169. 2009 irrigated broad-leaved annual crops in Eastern Irrigation District (21 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Wild buckwheat
76.2
14.0
18.4
0.7
0.9
2.0
40.9
2
Redroot pigweed
52.4
10.2
19.5
1.1
2.1
13.4
37.1
3
Wild oats
57.1
10.0
17.5
1.0
1.7
14.0
36.3
4
Green foxtail
28.6
9.5
33.3
1.2
4.1
15.8
32.5
5
Barnyard grass
19.0
9.3
48.8
1.2
6.5
11.8
31.0
6
Lamb's-quarters
42.9
6.7
15.6
0.4
1.0
3.8
22.4
7
Kochia
52.4
6.0
11.4
0.2
0.5
1.4
21.2
8
Dandelion
38.1
5.7
15.0
0.3
0.9
4.4
18.9
9
Alfalfa
14.3
3.6
25.0
0.2
1.3
2.4
9.6
10
Wheat
14.3
2.1
15.0
0.2
1.7
2.0
8.6
11
Barley
4.8
2.1
45.0
0.4
7.4
7.4
8.1
12
Quack grass
14.3
2.1
15.0
0.2
1.3
1.6
8.0
13
Round-leaved mallow
4.8
2.4
50.0
0.2
5.0
5.0
6.9
14
Canada thistle
14.3
1.0
6.7
< 0.1
0.3
0.4
4.7
15
Chickweed
4.8
1.0
20.0
< 0.1
1.0
1.0
2.7
16
Stork's-bill
4.8
0.5
10.0
< 0.1
0.6
0.6
1.9
17
Cleavers
4.8
0.5
10.0
< 0.1
0.4
0.4
1.8
18
Pale smartweed
4.8
0.5
10.0
< 0.1
0.4
0.4
1.8
19
Foxtail barley
4.8
0.2
5.0
< 0.1
0.2
0.2
1.4
20
Japanese brome
4.8
0.2
5.0
< 0.1
0.2
0.2
1.4
21
Flixweed
4.8
0.2
5.0
< 0.1
0.2
0.2
1.4
22
Stinkweed
4.8
0.2
5.0
< 0.1
0.2
0.2
1.4
Table 170. 2009 irrigated canola in Eastern Irrigation District (16 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Wild buckwheat
87.5
17.5
20.0
0.8
0.9
2.0
54.0
2
Wild oats
62.5
11.3
18.0
1.2
1.8
14.0
46.2
3
Green foxtail
31.3
8.8
28.0
1.1
3.6
15.8
36.2
4
Kochia
68.8
7.8
11.4
0.3
0.5
1.4
29.7
5
Dandelion
43.8
7.2
16.4
0.4
0.9
4.4
25.1
6
Lamb's-quarters
43.8
5.6
12.9
0.3
0.7
2.6
21.1
7
Barnyard grass
6.3
4.4
70.0
0.7
11.8
11.8
18.9
8
Redroot pigweed
43.8
3.8
8.6
0.2
0.5
1.2
17.2
9
Barley
6.3
2.8
45.0
0.5
7.4
7.4
12.4
10
Quack grass
18.8
2.8
15.0
0.3
1.3
1.6
11.6
11
Wheat
12.5
1.6
12.5
0.2
1.5
2.0
7.7
12
Canada thistle
18.8
1.3
6.7
0.1
0.3
0.4
6.6
13
Chickweed
6.3
1.3
20.0
0.1
1.0
1.0
3.9
14
Alfalfa
6.3
1.3
20.0
0.1
0.8
0.8
3.7
15
Foxtail barley
6.3
0.3
5.0
< 0.1
0.2
0.2
1.9
16
Japanese brome
6.3
0.3
5.0
< 0.1
0.2
0.2
1.9
17
Flixweed
6.3
0.3
5.0
< 0.1
0.2
0.2
1.9