Basic HTML Version
Field Survey Summary Tables – Bow River Irrigation District
137
Table 158. 2009 irrigated spring wheat in Bow River Irrigation District (33 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Wild oats
34.0
10.4
30.7
3.0
8.8
49.2
64.5
2
Wild buckwheat
52.7
14.1
26.8
1.3
2.4
12.4
56.2
3
Canola (Argentine)
22.1
9.5
43.0
1.4
6.5
21.4
40.3
4
Kochia
38.9
6.0
15.4
0.4
0.9
2.6
27.4
5
Green foxtail
24.1
4.7
19.3
0.3
1.4
6.4
20.0
6
Round-leaved mallow
17.8
3.3
18.3
0.2
1.1
2.2
13.8
7
Perennial sow-thistle
6.4
3.4
53.0
0.5
7.8
14.2
13.6
8
Canada thistle
21.2
2.0
9.4
0.1
0.5
1.0
11.8
9
Spiny annual sow-thistle
6.4
2.2
34.6
0.3
5.0
6.2
9.6
10
Redroot pigweed
12.3
0.8
6.2
0.1
0.9
1.6
6.8
11
Stinkweed
3.4
1.5
45.0
0.2
4.6
4.6
5.6
12
Foxtail barley
9.3
0.8
8.2
0.1
0.6
1.6
5.2
13
Chickweed
6.9
0.9
12.5
0.1
1.5
2.4
5.0
14
Annual sow-thistle
6.9
0.5
7.5
0.1
0.9
1.6
4.0
15
Cleavers
3.4
1.0
30.0
0.1
1.8
1.8
3.6
16
Broad-leaved plantain
3.0
0.7
25.0
0.1
2.2
2.2
3.0
17
Dandelion
3.0
0.7
25.0
< 0.1
1.2
1.2
2.6
18
Russian thistle
3.4
0.5
15.0
< 0.1
1.2
1.2
2.5
19
Persian darnel
3.4
0.2
5.0
< 0.1
0.2
0.2
1.6
20
Lamb's-quarters
3.4
0.2
5.0
< 0.1
0.2
0.2
1.6
21
Flixweed
3.0
0.1
5.0
< 0.1
0.2
0.2
1.3
Table 159. 2009 irrigated barley in Bow River Irrigation District (10 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Wild oats
78.2
19.2
24.6
2.4
3.0
10.8
56.6
2
Green foxtail
18.8
9.9
52.5
2.7
14.5
28.8
35.6
3
Perennial sow-thistle
21.8
10.9
50.0
1.7
7.9
15.6
29.5
4
Persian darnel
10.9
10.9 100.0
1.7
15.2
15.2
26.3
5
Kochia
29.7
7.1
23.9
0.7
2.3
5.0
19.7
6
Stinkweed
32.7
7.6
23.3
0.5
1.5
2.8
19.5
7
Wild buckwheat
40.6
4.6
11.3
0.2
0.5
0.8
16.1
8
Wild mustard
10.9
8.2
75.0
0.6
5.6
5.6
15.5
9
White mustard
9.4
5.6
60.0
0.9
9.4
9.4
14.8
10
Canada thistle
39.1
2.4
6.2
0.2
0.4
0.6
13.3
11
Quack grass
10.9
3.3
30.0
0.4
3.6
3.6
9.0
12
Tartary buckwheat
21.8
1.6
7.5
0.2
1.0
1.4
8.7
13
Alfalfa
9.4
4.2
45.0
0.2
2.6
2.6
8.4
14
Redroot pigweed
18.8
1.9
10.0
0.1
0.6
1.0
7.4
15
Lamb's-quarters
18.8
1.9
10.0
0.1
0.5
0.8
7.2
16
Foxtail barley
10.9
1.6
15.0
0.1
1.2
1.2
5.3
17
Smooth brome
10.9
0.5
5.0
< 0.1
0.4
0.4
3.6
18
Barnyard grass
10.9
0.5
5.0
< 0.1
0.4
0.4
3.6