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6. Nutrient Gains and Losses
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6.1 Nutrient Sources (Gains)
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6.1.3 Irrigation water
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Tabelle
8
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N-derived
from Irrigation Wate
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Irrgfation
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Nitrate
Content of Irrigation Water
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mm
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mg
NO3Liter-1
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50
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100
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150
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200
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250
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300
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N applied by
application of Irrigation
Water
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kg
N ha-1
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20
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11
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14
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40
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14
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18
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23
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27
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60
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14
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20
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27
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33
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41
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80
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18
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27
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36
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45
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54
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100
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11
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23
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33
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45
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56
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68
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120
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13
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28
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40
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54
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67
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82
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140
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15
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32
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46
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63
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78
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95
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160
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18
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37
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53
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72
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90
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109
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180
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20
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41
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59
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81
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111
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122
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200
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23
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45
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68
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90
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113
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135
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220
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24
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51
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73
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99
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123
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150
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240
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26
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55
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79
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108
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134
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163
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260
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29
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60
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86
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117
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146
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177
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280
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31
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64
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92
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126
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157
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190
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300
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33
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69
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99
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135
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168
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204
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500
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56
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113
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169
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225
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281
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338
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800
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90
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180
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270
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360
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450
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510
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