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5.4.6. Texture 8 (Silt Loam)
Figure 5.8 ANN 7-7-20
The database has 260 records of silt loam, there are 12 missing values reducing the
number of useable records to 248. The main network in use is ANN 8-7-20. The percent
error for this network ranges from 2000% - 75 % (Figure 5.9) and is by far the least
accurate of the networks developed. The largest errors are for the lower denitrification
rates.
5.4.7. Texture 9 (Silty Clay)
There are 283 records for silt clay of these only three have missing values. The network
in use is ANN 9-7-20. The percent error for this network ranges between 5 % - 160 %
(Figure 5.10). This network has the greatest amount of errors at the lower end of the
scale, for higher denitrification rates the network predicts the rates relatively accurately.
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