Study

Temporal changes in soil organic carbon contents and δ13C values under long-term maize-wheat rotation systems with various soil and climate conditions

  • Published source details Tang X., Ellert B.H., Hao X., Ma Y., Nakonechny E. & Li J. (2012) Temporal changes in soil organic carbon contents and δ13C values under long-term maize-wheat rotation systems with various soil and climate conditions. Geoderma, 183-184, 67-73.

Actions

This study is summarised as evidence for the following.

Action Category

Amend the soil with formulated chemical compounds

Action Link
Soil Fertility

Amend the soil with fresh plant material or crop remains

Action Link
Soil Fertility
  1. Amend the soil with formulated chemical compounds

    A controlled, randomized, replicated experiment from 1990 to 2005 on silty, silty-clay and clay soil at four sites in China (Tang et al. 2012) found higher soil organic carbon levels under nitrogen/phosphorus/potassium (NPK) plus straw (9.1 g C/kg soil) compared to NPK alone (8.4 g C/kg) or the control (7.7 g C/kg). Three treatments were applied to long-term wheat Triticum aestivum-maize Zea mays rotations at four sites: control (no fertilizer), NPK (at 165-362 kg N/ha, 25-41 kg P/ha, and 68-146 kg K/ha), and NPK plus straw (at 2.2-6 Mg/ha)). Weeds were removed manually and crops were irrigated when necessary. Soils were sampled to 20 cm depth at each site in autumn after maize harvest, and before the next fertilizer application.

     

  2. Amend the soil with fresh plant material or crop remains

    A controlled, randomized, replicated experiment from 1990 to 2005 on silty, silty-clay and clay soil at four sites in China (Tang et al. 2012) found higher soil organic carbon levels under nitrogen/phosphorus/potassium (NPK) plus straw (9.1 g C/kg soil) compared to NPK alone ()8.4 g C/kg) or the control (7.7 g C/kg). Three treatments were applied to long-term wheat Triticum aestivum-maize Zea mays rotations at four sites: control (no fertilizer), NPK (at 165-362 kg N/ha, 25-41 kg P/ha, and 68-146 kg K/ha), and NPK plus straw (at 2.2-6 Mg/ha)). Weeds were removed manually and crops were irrigated when necessary. Soils were sampled to 20 cm depth at each site in autumn after maize harvest, and before the next fertilizer application.

     

Output references
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