Fig. 3. Amounts of applied stable and easily mineralizable organic C added to soil by manure at a rate of 100 mg N per kg soil. Easily mineralizable C is defined as the C that mineralized during aerobic incubation for 44 d at 20°C, while stable C is defined as the C that remained after this incubation (see Table 6). The left bars are results for the sandy soil and the right bars for the clay soil.