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Fig. 3. Leaching losses of total inorganic N for each year from soils (a) as total losses and regression analysis (b) for year and (c) treatment. Error bars represent the standard deviation. CC1: 20 t ha1 of compost; CC2: 40 t ha1 of compost; CCM1: 20 t ha1 of compost plus 400 kg N ha1 (as NH4NO3); CCM2: 40 t ha1 of compost plus 400 kg N ha1. Treatment 1: control soil; 2: CC1; 3: CC2; 4: CCM1; and 5: CCM2.
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