Long-term amendment of four different compost types on a loamy silt Cambisol: impact on soil organic matter, nutrients and yields

Autor: Andreas Baumgarten, N. Schlatter, Georg Dersch, T. Lehtinen, Josef Söllinger, Heide Spiegel, Karl Aichberger
Rok vydání: 2016
Předmět:
Zdroj: Archives of Agronomy and Soil Science. 63:663-673
ISSN: 1476-3567
0365-0340
Popis: This study investigated the long-term effects of different composts (urban organic waste compost (OWC), green waste compost (GWC), cattle manure compost (MC) and sewage sludge compost (SSC)) compared to mineral fertilisation on a loamy silt Cambisol, after a 7-year start-up period. The compost application rate was 175 kg N ha−1, with 80 kg mineral N ha−1 and without. Soil characteristics (soil organic carbon (SOC), carbon-to-nitrogen (C/N) ratio and soil pH), nutrients (nitrogen (N), phosphorous (P) and potassium (K)) and crop yields were investigated between 1998 and 2012. SOC concentrations were increased by compost applications, being highest in the SSC treatments, as for soil pH. N contents were significantly higher with compost amendments compared to mineral fertilisation. The highest calcium-acetate-lactate (CAL)-extractable P concentrations were measured in the SSC treatments, and the highest CAL-extractable K concentrations in the MC treatments. Yields after compost amendment for winter ba...
Databáze: OpenAIRE