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Response of soil microbial biomass and community structures to conventional and organic farming systems under identical crop rotations Organic Eprints
Esperschütz, Jürgen; Gattinger, Andreas; Mäder, Paul; Schloter, Michael; Fließbach, Andreas.
In this study the influence of different farming systems on microbial community structure was analyzed using soil samples from the DOK long-term field experiment in Switzerland, which comprises organic (BIODYN and BIOORG) and conventional (CONFYM and CONMIN) farming systems as well as an unfertilized control (NOFERT). We examined microbial communities in winter wheat plots at two different points in the crop rotation (after potatoes and after maize). Employing extended polar lipid analysis up to 244 different phospholipid fatty acids (PLFA) and phospholipid ether lipids (PLEL) were detected. Higher concentrations of PLFA and PLEL in BIODYN and BIOORG indicated a significant influence of organic agriculture on microbial biomass. Farmyard manure (FYM)...
Tipo: Journal paper Palavras-chave: Nutrient turnover; "Organics" in general; Soil quality.
Ano: 2007 URL: http://orgprints.org/13315/1/Esperschuetz-FEMSME-2007.pdf
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Strukturelle und funktionelle Charakterisierung von mikrobiellen Gemeinschaften in ökologisch und konventionell bewirtschafteten Ackerböden Organic Eprints
Esperschütz, Jürgen; Gattinger, Andreas; Schloter, Michael; Fließbach, Andreas.
Strukturelle und funktionelle Charakterisierung von mikrobiellen Gemeinschaften in ökologisch und konventionell bewirtschafteten Ackerböden.
Tipo: Conference paper, poster, etc. Palavras-chave: Soil biology; Soil quality.
Ano: 2005 URL: http://orgprints.org/9090/1/fliessbach%2Detal%2D2005%2DBeitrag_8_Wissenschaftsstagung.pdf
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Soil microbial community structure and organic matter transformation processes in organic and integrated farming systems Organic Eprints
Fliessbach, Andreas; Dubois, David; Esperschütz, Jürgen; Gunst, Lucie; Mäder, Paul; Oberholzer, Hansruedi; Schloter, Michael; Gattinger, Andreas.
The DOK long-term field trial in Switzerland started in 1978 (Mäder et al., 2002). Biodynamic (BIODYN), bioorganic (BIOORG) and integrated (CONFYM) farming systems with manure fertilization, an integrated system based on mineral fertilizer only (CONMIN) and an unfertilized control (NOFERT) were investigated for changes in soil organic matter and on the structure of the soil microbial communities. Soil organic matter (SOM) in the Ap-horizon (0-20 cm) was analysed from the beginning of the DOK field trial in 1978. Roughly 20% of the initial SOM was lost when no manure was applied for 21 years as in the CONMIN and the NOFERT system, whereas SOM increased slightly by 4% in the BIODYN system that makes use of composted farmyard manure, corresponding to 1.4...
Tipo: Conference paper, poster, etc. Palavras-chave: Soil quality.
Ano: 2005 URL: http://orgprints.org/4342/4/Fliessbach_etal_4p_revised%2Ded.doc
Registros recuperados: 3
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