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| Vian, Jean François; Peigné, Joséphine; Chaussod, Rémi; Roger-Estrade, Jean. |
| Tillage modifies soil structure and crop residue distribution and in turn affects the ability of soil micro-organisms to degrade soil organic matter and release nutrients for crop growth. In organic farming, soil microbiological activity is of primary importance as nutrient supply is mainly dependent on the degradation of soil organic matter by soil micro-organisms. The aim of this work was therefore to study, in organic farming, the effects of four tillage systems [mouldboard ploughing (MP), shallow mouldboard ploughing (SMP), reduced tillage (RT) and shallow soil tillage (ST)] on soil structure, soil microbial biomass (SMB) and its potential activity (Cmin) during the first year following the treatments. To study simultaneously the effects of soil... |
| Tipo: Journal paper |
Palavras-chave: Soil biology Cereals; Pulses and oilseeds Soil tillage. |
| Ano: 2008 |
URL: http://orgprints.org/19497/1/Vian%2C_2009_Effects_of_four_tillage_systems_on_soil_structure_and_soil_microbial_biomass_in_organic_farming.pdf |
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| Lefèvre, Vincent; Capitaine, Mathieu; Peigne, Joséphine; Roger-Estrade, Jean. |
| Organic agriculture is called upon to raise production to meet growing demand all the while ensuring the respect of the environment. In this context, improving the soil biological activity is crucial. Farmers are taking great interest in agroecological practices, such as conservation tillage associated with soil cover crops. The inclusion of these practices into current organic crop management systems calls for profound changes in the whole system.In this paper, we present aeight steps method to help farmers designing innovative prototypes of cropping systems. The method involves three design workshops, starting with a given decontextualized situation, before progressively integrating farmers‟ constraints. The method was run with two groups of six and... |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Soil biology; Soil. |
| Ano: 2013 |
URL: http://orgprints.org/26301/1/LefevreV_2013_CIAG_Vol32.pdf |
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| Vian, Jean François; Peigné, Joséphine; Chaussod, Rémi; Roger-Estrade, Jean. |
| Soil tillage modifies environmental conditions of soil microorganisms and their ability to release nitrogen. We compare the influence of reduced tillage (RT) and mouldboard ploughing (MP) on the soil microbial functioning in organic farming. In order to connect soil structure generated by these tillage systems on the soil microbial biomass we adopt a particular sampling scheme based on the morphological characterisation of the soil structure by the description of the soil profile. This method reveals the influence of soil structure on soil microbial biomass and allows a more precise assessment of the impact of tillage managements on the soil microbial functioning. |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Soil. |
| Ano: 2007 |
URL: http://orgprints.org/9775/1/Vian%2D2007%2Dtillage_systems.pdf |
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