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Field Survey Summary Tables – Alberta
35
Table 16. 2009 irrigated sugar beets in Alberta (17 fields)
Frequency Field Uniformity
Field Density (#/m
2
)
Relative
Rank Species
(%)
All Occurrence All Occurrence High Abundance
1
Barnyard grass
12.1
6.6
55.0
0.8
6.4
7.8
46.6
2
Redroot pigweed
27.5
6.7
24.5
0.5
1.7
5.0
43.8
3
Lamb's-quarters
22.8
5.1
22.2
0.4
1.6
3.8
34.4
4
Round-leaved mallow
17.5
4.9
28.3
0.4
2.2
5.0
32.0
5
Wild buckwheat
28.2
3.3
11.7
0.2
0.6
1.0
25.8
6
Alfalfa
12.1
3.3
27.5
0.2
1.6
2.4
19.6
7
Canola (Argentine)
18.1
2.1
11.7
0.1
0.5
0.6
15.8
8
Dandelion
10.7
2.4
22.5
0.1
1.3
2.6
14.9
9
Wheat
9.4
1.6
17.5
0.2
2.0
2.4
14.3
10
Kochia
16.7
1.1
6.4
0.1
0.3
0.6
11.7
11
Quack grass
10.7
0.8
7.2
< 0.1
0.4
0.6
7.9
12
Wild oats
4.7
1.2
25.0
0.1
1.2
1.2
6.7
13
Foxtail barley
6.8
0.7
10.0
< 0.1
0.4
0.4
5.5
14
Pale smartweed
6.0
0.6
10.0
< 0.1
0.4
0.4
4.9
15
Chickweed
4.7
0.7
15.0
< 0.1
0.6
0.6
4.7
16
Green foxtail
6.0
0.3
5.0
< 0.1
0.2
0.2
3.8
17
Stinkweed
6.0
0.3
5.0
< 0.1
0.2
0.2
3.8
18
Canada thistle
6.0
0.3
5.0
< 0.1
0.2
0.2
3.8