Joint International Conference on Long-term Experiments ...

Table 4: Changes in soil properties under the winter wheat after 2 years of digestate
application. Treatments are numbered according to Table 1.
Treatment pH H2O pH KCl y1 Humus %
NO3-N (mg kg -1 P2O5 ) (mg kg -1 )
K2O (mg kg -1 Na
) (mg kg -1 )
Mg
(mg kg -1 )
Before treatment 5,49 4,52 2,34 1,038 33,834 348 221 17,5 78,4
1 5,89 4,94 8,50 0,867 0,171 138 54 12,8 3,8
2 4,80 3,88 11,00 0,696 7,068 85 95 26,1 10,3
3 5,36 4,40 12,75 0,585 9,013 104 102 14,5 9,7
4 6,35 5,81 8,75 0,978 8,868 98 88 18,8 13,8
5 5,06 4,36 11,25 1,018 21,044 109 132 33,4 15,8
6 4,86 3,90 11,25 1,301 5,509 133 76 32,0 10,5
7 4,76 4,04 11,75 0,897 9,922 194 155 29,7 21,0
8 5,64 4,25 8,50 0,897 0,216 173 52 16,0 3,6
9 6,03 4,98 6,50 0,827 0,184 200 54 14,6 4,9
10 5,63 4,72 10,25 1,139 0,195 197 47 17,7 2,3
11 5,65 4,95 10,25 0,887 0,622 170 46 20,9 7,1
12 5,83 4,46 8,25 0,847 0,480 197 63 19,6 7,1
13 5,66 4,39 12,75 0,948 0,329 192 66 20,1 6,9
Table 5: Changes in soil properties under the triticale after 1 year of digestate
application. Treatments are numbered according to Table 1.
Treatment pH H2O pH KCl y1 Humus %
NO3-N (mg kg -1 P2O5 ) (mg kg -1 )
K2O (mg kg -1 Na
) (mg kg -1 )
Mg
(mg kg -1 )
Before treatment 5,46 3,88 9,65 0,44 4,688 245 179 11,5 60,3
1 5,42 3,92 12,75 0,68 0,190 242 131 76,8 3,7
2 5,74 4,29 12,25 0,83 1,322 264 209 67,5 13,0
3 5,57 4,18 11,75 0,76 0,232 173 125 89,8 13,4
4 5,71 4,66 12,25 0,84 0,205 253 210 86,3 12,5
5 5,38 4,01 12,75 0,92 1,433 258 155 49,6 12,8
6 5,26 4,04 8,75 0,79 0,342 258 157 49,5 11,8
7 5,39 4,47 12,50 0,50 2,863 205 136 44,5 3,7
NO3-N and Mg-content of soils decreased in both treatments, while Na-content was
increased. Increased Na-content indicates unfavourable changes in the soils. We
indicated this process for the operators, and the decreasing of Na-content of the
digestate was successful.
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