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| Registros recuperados: 22 | |
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| Fliessbach, Andreas; Oberholzer, Hans-Rudolf; Gunst, Lucie; Paul, Mäder. |
| Organic farming systems often comprise crops and livestock, recycle farmyard manure for fertilization, and preventive or biocontrol measures are used for plant protection. We determined indicators for soil quality changes in the DOK long-term comparison trial that was initiated in 1978. This replicated field trial comprises organic and integrated (conventional) farming systems that are typical for Swiss agriculture. Livestock based bio-organic (BIOORG), bio-dynamic (BIODYN) and integrated farming systems (CONFYM) were compared at reduced and normal fertilization intensity (0.7 and 1.4 livestock units, LU) in a 7 year crop rotation. A stockless integrated system is fertilized with mineral fertilizers exclusively (CONMIN) and one control treatment remained... |
| Tipo: Journal paper |
Palavras-chave: Biodiversity and ecosystem services; Soil quality. |
| Ano: 2007 |
URL: http://orgprints.org/10627/1/Fliessbach_AGEE_2007_AF1949.pdf |
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| Nemecek, Thomas; Dubois, David; Gunst, Lucie; Gaillard, Gérard. |
| The environmental impacts of the conventional and organic farming systems practised in the DOC trial (organic-dynamic, organic and conventional farming) have been assessed by the SALCA life cycle assessment method. Both organic farming systems were more favourable for the environment in all investigated impacts per area unit. When analysed per product unit, clear advantages of organic farming were found for ecotoxicity and the use of mineral resources, while energy use and eutrophication were similar to conventional farming. Reducing fertilisation by 50% led to lower or equal environmental impacts for all systems, depending on the impact category and the functional unit. The analysis of single crops revealed large differences that are partly... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Specific methods. |
| Ano: 2005 |
URL: http://orgprints.org/4458/3/Nemecek_etal_4p_revised%2Ded.doc |
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| Gunst, Lucie; Krebs, Heinz; Dubois, D.; Forrer, H.-R.. |
| In the DOK long-term field trial in Switzerland comparing bio-dynamic, bio-organic, and conventional farming systems, the occurrence of Fusarium species and Microdochium nivale on grains of wheat was investigated from 1997 to 2003. Although no differences between the farming systems were found, the previous crop, the fertilisation level, and the year significantly influenced the disease incidence. In 2003, the effect of the pre-crops potatoes versus silage-maize on fusaria was compared. As expected, the incidence of fusaria was significantly higher after maize compared with potatoes. However, the main responsible species was not F. graminearum but F. poae. This species is known for the production of hazardous toxins. A greater input of fertiliser resulted... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop health; Quality; Protection Crop combinations and interactions Cereals; Pulses and oilseeds Composting and manuring. |
| Ano: 2005 |
URL: http://orgprints.org/3781/1/3781.pdf |
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| Mäder, Paul; Fliessbach, Andreas; Niggli, Urs; Gunst, Lucie; Mayer, Jochen. |
| Sustainable food and feed production is becoming a major issue with regard to the growing world’s population and the scarcity of non-renewable resources such as energy and fertilizers. Long-term trials offer the unique opportunity to assess the performance of cropping systems over decades, providing meaningful data. While many studies have proven, that organic farming generally increases soil fertility and biodiversity, long-term productivity of organic systems is questioned. Here we show that across all crops of a seven year rotation, yields of the organic system were approx. 81% of those of the conventional system in the fifth rotation period of the DOK trial (2006-2012), but with much lower input of nutrients and pesticides. Two major food and feed... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Cereals; Pulses and oilseeds Crop husbandry Soil Root crops. |
| Ano: 2013 |
URL: http://orgprints.org/21600/1/21600_Maeder.pdf |
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| Fliessbach, Andreas; Mäder, Paul; Dubois, David; Pfiffner, Lukas; Gunst, Lucie. |
| Résultats de 21 ans d'essai DOC (Dossier N° 1) Dans un langage accessible au plus grand nombre, ce dossier présente les résultats marquants de 21 années d'essai DOC. Cette expérience de terrain offre une comparaison à long terme des méthodes de culture biodynamique (D), bio-organique (O) et conventionnelle (C). Font l'objet d'une mise en évidence et d'un commentaire, les rendements, les exportations et prélèvements d'éléments fertilisants, les effets sur la vie, la structure et la biodiversité du sol. |
| Tipo: Book |
Palavras-chave: Soil quality; Nutrient turnover; Soil tillage. |
| Ano: 2001 |
URL: http://orgprints.org/25234/1/1190-dok.pdf |
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| Fliessbach, Andreas; Mäder, Paul; Dubois, David; Gunst, Lucie. |
| The DOK-long term trial - unique in his conception - compares the consequences of bio-dynamic, bio-organic and conventional farming systems in a randomised plot trial. The field trial was started in 1978. In the beginning the main goals were agronomic: yield and product quality. In the last decade, therefor research has focused on processes in the soil and the long-term effects of organic farming practice on the environment.The database of agronomic results of more than twenty years has stimulatad the discussion about farming systems and has contributed significantly to the general acceptance of organic farming. |
| Tipo: Book |
Palavras-chave: Soil quality; Soil tillage; Biodiversity and ecosystem services. |
| Ano: 2000 |
URL: http://orgprints.org/25236/1/1090-doc.pdf |
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| Birkhofer, Klaus; Bezemer, TM; Bloem, J; Bonkowski , M; Christensen, S.; Dubois, David; Ekelund , F; Fließbach, Andreas; Gunst, Lucie; Hedlund , K; Mäder, Paul; Mikola , J; Robin , C; Setälä, Heikki; Tatin-Froux , F; Van der Putten , WH; Scheu, Stefan. |
| Organic farming may contribute substantially to future agricultural production worldwide by improving soil quality and pest control, thereby reducing environmental impacts of conventional farming. We investigated in a comprehensive way soil chemical, as well as below and aboveground biological parameters of two organic and two conventional wheat farming systems that primarily differed in fertilization and weed management strategies. Contrast analyses identified management related differences between “herbicide-free” bioorganic (BIOORG) and biodynamic (BIODYN) systems and conventional systems with (CONFYM) or without manure (CONMIN) and herbicide application within a long-term agricultural experiment (DOK trial, Switzerland). Soil carbon content was... |
| Tipo: Journal paper |
Palavras-chave: Soil. |
| Ano: 2008 |
URL: http://orgprints.org/26205/1/Birkhofer_etal_2008_soil.pdf |
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| Jarosch, KA.; Gunst, Lucie; Dubois, David; Mäder, Paul; Mayer, Jochen. |
| We calculated a phosphorus (P) and potassium (K) balance for the DOK-trial (Therwil, Switzerland) for a 35-years cropping period. In the DOK-trial, three cropping systems (D: biodynamic, O: bioorganic and K: conventional) are maintained on both a full (2) and a halved (1) fertilization level. Additionally, a treatment with no fertilization (N) and mineral fertilization (M; since 1985) are included. Balance inputs included fertilization, deposition, nutrients inputs by seeds, while in the outputs removal of nutrients by harvested plant material and leaching was considered. For P, the balance was positive for treatment M and treatment O2, but negative for the other treatments. The K-balance was positive only for treatment M, while treatments D2, O2 and K2... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil quality; Nutrient turnover. |
| Ano: 2017 |
URL: http://orgprints.org/31861/1/Phosphor-%20und%20Kalium-Bilanzen%20%C3%BCber%2035%20Jahre%20DOK-Versuch.pdf |
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| Mayer, Jochen; Jarosch, KA.; Hammelehle, Andreas; Dubois, David; Gunst, Lucie; Bosshard, C.; Frossard, Emmanuel; Mäder, Paul; Oberson, Astrid. |
| N-balances over 35 years from the DOK trial are presented and combined with Nstock changes in DOK treatments on different fertilisation levels. Results strongly indicate an N efficiency-sustainability dilemma: DOK treatments with a high nitrogen use efficiency (NUE) lose more soil stock N than those with a lower NUE but higher N losses from the system. The biodynamic system showed little advantage in terms of soil N stocks sustainability while the solely mineral fertilised conventional treatment had highest NUE across all inputs including soil N change. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Biodiversity and ecosystem services; Farm nutrient management. |
| Ano: 2017 |
URL: http://orgprints.org/31925/1/Stickstoffbilanzen%20in%20biologischen%20und%20konventionellen.pdf |
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| Mäder, Paul; Fließbach, Andreas; Dubois, David; Gunst, Lucie; Fried, Padrout; Niggli, Urs. |
| Goklany stated that 20 % lower crop yields in organic farming would require 25 % more land use to produce the same amount of crop biomass, offsetting some of the advantages of organic agriculture with respect to biological diversity, inputs, and soil erosion, and that the experimental yields are not typical. Furthermore, he indicates that organic farming might not be sufficient to feed the world. |
| Tipo: Journal paper |
Palavras-chave: Farming Systems; Soil. |
| Ano: 2002 |
URL: http://orgprints.org/26787/1/Goklany_et_al_2002_S.pdf |
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| 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 |
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| Registros recuperados: 22 | |
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