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Providing evidence to improve practice

Individual 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


This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Amend the soil with formulated chemical compounds Soil Fertility

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.

 

Amend the soil with fresh plant material or crop remains Soil Fertility

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.