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| Sun, Hanyin; Koal, Philipp; Liu, Dong; Gerl, Georg; Schroll, Reiner; Gattinger, Andreas; Joergensen, Rainer Georg; Munch, Jean Charles. |
| In a field trial comprising organic farming and minimum tillage management strategies in Scheyern, Germany, we evaluated the long-term (21-year) effects of organic farming (use of a diverse crop rotation with legume cover crop and without application of synthetic fertilizer or pesticides) and minimum tillage (6–8 cm depth) on the microbial community structure and microbial residues in Cambisols. Organic farming had a positive effect on microbial biomass, total phospho-lipid fatty acids (PLFA), Gram (+) bacteria, Gram (-) bacteria and the arbuscular mycorrhizal fungi (AMF) indicator PLFA 16:1v5 and amino sugars. The increase in presence of Gram (+) bacteria when compared to integrated farming was also reflected by increased content of bacterial muramic acid... |
| Tipo: Journal paper |
Palavras-chave: Soil biology; Crop husbandry. |
| Ano: 2016 |
URL: http://orgprints.org/30642/1/Sun-etal-2016-ASE.pdf |
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| Joergensen, Rainer Georg; Mäder, Paul; Fließbach, Andreas. |
| Samples from the bio-dynamic, bio-organic, and conventional trial, Therwil, Switzerland, were analyzed with the aim of determining the effects of organic land use management on the energy metabolism of the soil microbial biomass and on the fraction of microbial residues. The contents of adenylates, adenosine triphosphate (ATP), glucosamine, muramic acid, and galactosamine were significantly largest in the biodynamic organic farming (BYODIN) treatment and significantly lowest in the conventional farming treatment with inorganic fertilization (CONMIN). In contrast, the ergosterol-to-ATP ratio and fungal C-to-bacterial C ratios were significantly lowest in the BYODIN treatment and significantly largest in the CONMIN treatment. No clear treatment effects were... |
| Tipo: Journal paper |
Palavras-chave: Soil biology. |
| Ano: 2010 |
URL: http://orgprints.org/17860/1/Joergensen%2Detal%2D2010%2Dbiol%2Dfertil%2Dsoils.pdf |
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| Sun, Hanyin; Koal, Philipp; Gerl, Georg; Schroll, Reiner; Gattinger, Andreas; Joergensen, Rainer Georg; Munch, Jean Charles. |
| Organic farming and agroforestry are considered as sustainable alternative agricultural practices for intensive agriculture. In a long-term field trial in Scheyern Germany, we evaluated the effects of 21-year organic farming and 4-year agroforestry (robinia and poplar) on microbial community and microbial residues. Microbial biomass and microbial community were determined by fumigation–extraction method and the analysis of phospholipid fatty acid (PLFA), respectively. Microbial residues were evaluated by the measurement of amino sugars. The results showed that organic farming had significantly positive effect on soil organic carbon (SOC) but that it tended to decrease microbial biomass C (MBC), PLFA functional guilds, muramic acid (MurN), and glucosamine... |
| Tipo: Journal paper |
Palavras-chave: Crop husbandry. |
| Ano: 2016 |
URL: http://orgprints.org/30641/1/Sun-etal-2016-AgforstSys.pdf |
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