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Field Survey Summary Tables – Raymond & Magrath Irrigation Districts
151
Table 179. 2009 irrigated fields in Raymond & Magrath Irrigation Districts (22 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Dandelion
48.9
22.1
45.2
2.4
4.9
15.8
95.6
2
Kochia
42.0
8.4
20.0
2.0
4.8
44.0
61.9
3
Canada thistle
38.5
5.3
13.7
0.3
0.9
3.4
27.5
4
Field bindweed
21.2
3.9
18.4
0.3
1.6
6.0
19.4
5
Round-leaved mallow
26.1
3.9
15.0
0.2
0.8
2.0
19.0
6
Lamb's-quarters
15.7
3.4
21.7
0.2
1.0
1.6
13.7
7
Stinkweed
19.2
1.7
9.1
0.1
0.4
0.8
10.6
8
Redroot pigweed
20.9
1.0
5.0
< 0.1
0.2
0.2
9.2
9
Quack grass
14.0
1.2
8.7
0.1
0.5
1.0
7.9
10
Wild oats
10.7
0.7
6.7
0.1
0.7
1.6
6.0
11
Barley
5.2
1.0
20.0
0.1
1.2
1.2
4.6
12
Canola (Argentine)
8.8
0.7
8.0
< 0.1
0.3
0.4
4.5
13
Downy brome
5.2
0.5
10.0
< 0.1
0.4
0.4
2.9
14
Flixweed
5.2
0.5
10.0
< 0.1
0.4
0.4
2.9
15
Oats
5.2
0.3
5.0
< 0.1
0.4
0.4
2.5
16
Wild buckwheat
5.2
0.3
5.0
< 0.1
0.2
0.2
2.3
17
Green foxtail
5.2
0.3
5.0
< 0.1
0.2
0.2
2.3
18
Black medick
5.2
0.3
5.0
< 0.1
0.2
0.2
2.3
19
Perennial sow-thistle
5.2
0.3
5.0
< 0.1
0.2
0.2
2.3
20
Alfalfa
5.2
0.3
5.0
< 0.1
0.2
0.2
2.3
Table 180. 2009 irrigated annual crops in Raymond & Magrath Irrigation Districts (15 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Kochia
56.5
12.5
22.1
3.1
5.4
44.0
108.1
2
Field bindweed
32.5
6.0
18.4
0.5
1.6
6.0
34.6
3
Round-leaved mallow
32.1
5.6
17.5
0.3
1.0
2.0
29.5
4
Canada thistle
35.0
4.5
12.8
0.3
0.9
3.4
27.5
5
Dandelion
37.6
3.6
9.7
0.2
0.4
0.6
23.3
6
Redroot pigweed
24.1
1.2
5.0
< 0.1
0.2
0.2
11.2
7
Wild oats
16.5
1.1
6.7
0.1
0.7
1.6
10.1
8
Stinkweed
13.5
1.5
10.9
0.1
0.6
0.8
9.1
9
Lamb's-quarters
8.0
2.0
25.0
0.1
1.2
1.2
9.1
10
Barley
8.0
1.6
20.0
0.1
1.2
1.2
8.2
11
Quack grass
13.5
0.7
5.0
< 0.1
0.3
0.4
6.5
12
Downy brome
8.0
0.8
10.0
< 0.1
0.4
0.4
5.0
13
Oats
8.0
0.4
5.0
< 0.1
0.4
0.4
4.1
14
Wild buckwheat
8.0
0.4
5.0
< 0.1
0.2
0.2
3.7
15
Green foxtail
8.0
0.4
5.0
< 0.1
0.2
0.2
3.7
16
Alfalfa
8.0
0.4
5.0
< 0.1
0.2
0.2
3.7
17
Canola (Argentine)
5.5
0.3
5.0
< 0.1
0.2
0.2
2.6