Quantcast Table 1.1.5. Background Runoff Concentrations of Total Phosphorus and Chemical Oxygen Demand For Rural Land Uses

 
  
 
Table 1.1.5. Background Runoff Concentrations of
Total Phosphorus and Chemical Oxygen Demand For
Rural Land Uses.
P
COD
Source
(mg/l)
(mg/l)
Native Prairie1
0.2
49
Corn2
0.9
Continuous Corn  3
1.1
Native Grass4
0.1
31
Wheat5
1.4
Pasture  5
1.0
Alfalfa5
2.1
Corn6
0.3
Soybeans6
0.5
Small Grain6
0.6
Cropped Watershed6
0.7
59
Road ditches draining
144
cropped land6
Forest6
0.2
78
Soybeans7
1.5
1
Timmons and Holt, 1977
2
Young and Holt, 1977
3
Burwell et at., 1975
4
Crow et al., 1979
5
Olness et al., 1975
6
Young, R.A., Unpublished data, Morris, MN
7
Logan and Stiefel, 1979
(after Young et al., 1982)
A COD to BOD conversion ratio of 4.57 + 1.15 SD may be employed depending on the type
of operation and the animal feeding ration for feedlots in northern states (Young et al., 1982).
1.1-25

 


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