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| Registros recuperados: 10 | |
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| Oehl, F.; Frossard, E.; Fliessbach, A.; Dubois, D.; Oberson, A.. |
| Soil organic P (Po) mineralization plays an important role in soil P cycling. Quantitative information on the release of available inorganic P (Pi) by this process is difficult to obtain because any mineralized Pi gets rapidly sorbed. We applied a new approach to quantify basal soil Po mineralization, based on 33PO4 isotopic dilution during 10 days of incubation, in soils differing in microbiological activity. The soils originated from a 20 years old field experiment, including a conventional system receiving exclusively mineral fertilizers (MIN), a bioorganic (ORG) and bio-dynamic (DYN) system. Indicators of soil microbiological activity, such as size and activity of the soil microbial biomass and phosphatase activity, were highest in DYN and lowest in... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover; Soil biology; Soil quality. |
| Ano: 2004 |
URL: http://orgprints.org/2791/1/Oehl_et_al_2004_SBB_36.pdf |
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| Marinari, S.; Liburdi, K.; Fliessbach, A.; Kalbitz, K.. |
| In this study we tested the hypothesis that water-extractable organic carbon (WEOC) content and its properties can be used to distinguish conventionally (CONV) from organically (ORG) managed arable soils as responsible for C mineralization. We sampled soils at three different European sites located in Mediterranean (Italy) and continental (Switzerland) regions under conventional and organic management. The Mediterranean sites are here called CVI and LSI and the continental one DOK. The main difference between the two management systems (ORG and CONV) at all sites was the amount of organic fertilizer yearly added into the soil: in the ORG systems 2.2–2.5 Mg C year−1 were added as organic fertilizer, while in the CONV systems only mineral fertilizers were... |
| Tipo: Journal paper |
Palavras-chave: Soil biology. |
| Ano: 2010 |
URL: http://orgprints.org/17862/1/Marianari%2Detal%2D2010%2Delsevier.pdf |
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| Fliessbach, A.; Mäder, P.. |
| In 1978 the DOK long-term field experiment was installed at Therwil close to Basel comparing the farming systems „bio-Dynamic“, „bio-Organic“ and „(K)conventional“. In the first years of the trial, crop yield and feasibility of organic farming were investigated. Soils were analysed with respect to long-term effects on fertility and were evaluated in the view of farming effects on the environment. Today the interrelation of diversity and efficiency and the quality of organic products is the research focus. Long-term trials like the DOK-trial offer unique opportunities for this kind of research. The DOK-trial compares the three systems mentioned above on the basis of the same intensity of organic fertilization (i.e. the same number of animals per area), the... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil biology; Soil quality. |
| Ano: 2005 |
URL: http://orgprints.org/9094/1/FliessbachMaeder%2D2005%2DsoilQuality%2Dapplicationform.pdf |
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| Fliessbach, A.; Widmer, F.. |
| With growing concern about the protection of soil quality and biodiversity many countries have established regional and national programmes to monitor soil quality. This book reviews the theory and practice of a range of the various microbiological methods used within these programmes. The first section gives an overview of approaches to monitoring, evaluating and managing soil quality. The second section provides a practical handbook with detailed descriptions of the methods. The methods are described in chapters on soil microbial biomass and numbers, soil microbial activity, soil microbial diversity and community composition, and plant-microbe interactions and soil quality. Finally, a census is given of the main methods used in over 30 European... |
| Tipo: Book chapter |
Palavras-chave: Soil biology; Soil quality. |
| Ano: 2005 |
URL: http://orgprints.org/9093/1/fliessbach%2Dwidmer%2D2005%2Dmicrobial%2Dbiomass.pdf |
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| Cooper, J.M.; Baranski, M.; Nobel de Lange, M.; BARBERI, P.; Fliessbach, A.; Peigne, J.; Berner, A.; Brock, C.; Casagrande, M.; Crowley, O.; Davide, C.; De Vliegher, Alex; Döring, Thomas F.; Entz, M.; Grosse, M.; Haase, T.; Halde, C.; Hammerl, V.; Huiting, H.; Leithold, G.; Messmer, M.; Schloter, M.; Sukkel, M.; van der Heijden, M.; Willekens, K.; Wittwer, R.; Mäder, Paul. |
| As part of the TILMAN-ORG CORE ORGANIC II project, data on the use of reduced tillage in organic farming systems from a range of field trials and the published literature was compiled. A meta-analysis was conducted to determine the impacts of reduced tillage on crop yields, weed pressure and soil organic C stocks. This paper highlights some of the key findings from this study. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil tillage; Soil; Weed management. |
| Ano: 2014 |
URL: http://orgprints.org/23970/1/23970%20Copper_MM.pdf |
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| Sarig, S.; Fliessbach, A.; Steinberger, Y.. |
| Coastal sand dunes are affected by seasonal fuctuations in salinity due to seawater spray and precipitation. Salinity was found to be very high in summer soil samples and was about 1520 times lower in the preceding rainy winter. High microbial biomass values of 234.6 and 173.1 µgC gˉ¹ dry soil were found under Artemisia monosperma and Retama raetam, respectively, even at elevated salinity. The metabolic quotient for CO2 which may serve as an indicator for changes in microbial diversity or environmental stress, was unexpectedly high (58.5 and 48.8 µg mg ˉ¹ d ˉ¹ under A. monosperma and R. raetam, respectively) in low-saline samples from the winter when compared to the summer (a maximal value of 20 µg mg ˉ¹ d ˉ¹), probably indicating a shift in community... |
| Tipo: Journal paper |
Palavras-chave: Soil biology. |
| Ano: 1999 |
URL: http://orgprints.org/26772/1/Sarig_et_al_1999_ASRR.pdf |
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| Widmer, F.; Fliessbach, A.; Laczkó, E.; Schulze-Aurich, J.; Zeyer, J.. |
| Soil microbiological analyses may serve as a means for assessing soil characteristics. Standard microbiological culture-techniques, however, leave over 90% of the microorganisms in the environment unaccounted for. Several more recently developed analytical techniques such as DNA, phospholipid fatty acid (PLFA), and community level substrate utilization (CLSU) Ængerprints allow for more detailed analyses of soil microbial communities. We applied analyses of (1) community DNA with PCR and restriction fragment length polymorphism (RFLP), (2) community PLFAs with gas chromatography and mass spectrometry, and (3) CLSU with Biologe gram-negative-plates, to evaluate the biological characteristics of three soils used in pesticide degradation studies. Each of these... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover; Soil quality; Biodiversity and ecosystem services; Soil biology. |
| Ano: 2001 |
URL: http://orgprints.org/2944/1/widmer%2Det%2Dal%2D2001%2Dbulk%2Dsoil.pdf |
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| Niggli, U.; Hepperly, P.; Fliessbach, A.; Maeder, P.. |
| Agricultural production in most parts of the world will face less predictable weather conditions than mankind experienced during the intensification of agriculture over the last century. Especially South Asia and Southern Africa could suffer negative impact on several crops when no investments will be made into improved adaptiveness of the production systems. Besides specific technical measures (irrigation, breeding for drought improved or heat tolerant crops), the resilience of whole production systems is a very important focus. Organic agriculture is a highly knowledge-based technique for manipulating complex agro-ecosystems, for breeding locally adjusted seeds and livestock, and for producing on-farm fertilizers and inexpensive nature-derived... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Environmental aspects; Air and water emissions. |
| Ano: 2008 |
URL: http://orgprints.org/13350/2/niggli%2Detal%2D2008%2Dadaptiveness%2Dsummary.doc |
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| Fuchs, J. G.; Fliessbach, A.; Mäder, Paul; Weibel, F.P.; Tamm, L.; Mayer, J.; Schleiss, K.. |
| To evaluate the influence of compost on soil fertility and plant growth, several medium term and long term field experiments with composts were conducted in different crops. In two maize experiments, one in a sandy and one in a loamy soil, the influence of different composts and digestates on soil parameters and plant growth were investigated. All products increased pH of the soil and improved the biological soil activity (e.g., enzymatic activities). Immature compost immobilized nitrogen and reduced plant growth. Organic nitrogen fertilizer added during cultivation, could compensate the growth depression. A full factorial experiment in a 2-years-old organic apple orchard was conducted from 2001-2007. The factors tested in all 9 possible combinations... |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Composting and manuring; Fruit and berries. |
| Ano: 2014 |
URL: http://orgprints.org/36387/1/fuchs-etal-2014-ActaHort-1018-p39-46.pdf |
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| Kiboi, M. N.; Ngetich, K. F.; Mugendi, D. N.; Muriuki, A.; Adamtey, N.; Fliessbach, A.. |
| Soil biological properties are the most sensitive soil quality indicators that respond quickly to short-term soil fertility management changes. We studied the combined effects of tillage and soil external inputs on total soil organic carbon and nitrogen, microbial biomass carbon (MBC) and nitrogen (MBN) and acid phosphomonoesterase activity (ACP). This was done in Meru South and Kandara sub-counties in Kenya for three consecutive cropping seasons. Tillage was the main factor [minimum (D0) and conventional (D15)], and soil external inputs were the sub-factors: sole mineral fertiliser (F), crop residues + mineral fertiliser (RF), crop residues + animal manure + legume intercrop Dolichos lablab L. (RML), crop residues + mineral fertiliser + animal manure... |
| Tipo: Journal paper |
Palavras-chave: Farming Systems; Soil biology; Africa; Farm nutrient management. |
| Ano: 2018 |
URL: http://orgprints.org/34443/2/1-s2.0-S2352009418301366-main.pdf |
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| Registros recuperados: 10 | |
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