Effects of Biosolids at Varying Rates on Earthworms (Eisenia fetida) and Springtails (Folsomia candida)
Table 4
The effect of rate of application, t ha−1, compared for each of six biosolids on the number of adult Folsomia candida and on the number of juveniles (mean of 6 replicates, 10 Collembola per replicate).
Biosolid
Rate, t ha−1
Adult No. posttrial
No. juvenile Collembola
0
10.0
348.5
2-surface
9.83
200.83
1
2
9.5
142.33
5
9.67
55.83
10
7.83
40.17
20
0.0
0.0
sed
0.3717
19.857
0
10.0
252.0
2-surface
9.83
54.5
2
2
8.5
20.67
5
6.17
6.17
10
0.0
0.0
20
0.0
0.0
sed
0.5607
38.371
0
10.0
432.17
2-surface
9.67
84.33
3
2
9.0
41.17
5
5.67
0.0
10
0.0
0.0
20
0.0
0.0
sed
1.0205
35.471
0
10.0
387.67
2-surface
9.67
137.67
4
2
8.33
125.83
5
9.17
3.83
10
4.5
0.0
20
0.0
0.0
sed
0.7812
38.906
0
10.0
301.17
2-surface
9.67
139.83
5
2
9.5
103.83
5
7.83
21.83
10
7.5
0.0
20
5.0
0.0
sed
0.8608
26.954
0
10.0
359.5
2-surface
9.5
298.17
6
2
9.83
354.17
5
7.83
22.83
10
8.67
12.33
20
9.67
9.17
sed
1.0214
40.965
sed: Standard Error of the Difference between Means.
