Search results for "TILLAGE"
showing 10 items of 148 documents
Weed flora evolution in direct seeding under cover systems
2019
Since the beginning of agriculture, farmers have been working the soil to produce. With the apparition of mechanization (development of plow coupled to tractors in the early 20th century), this practice has intensified and widespread on all farms. However, in France, since the 2000s, more and more farmers are questioning the utility of working the soil to produce. A new form of agriculture has appeared; the direct seeding under cover which groups together a set of cropping systems that meet certain requirements: no tillage, maximum vegetation cover and diversified rotation. By its emergent properties, this new form of agriculture raises new questions of research that mobilize both agronomy …
Régulations biologiques des adventices: la prédation par les carabidés en semis direct sous couvert
2013
Co-design and test of biodiversity-based pesticide-free Conservation Agriculture in the long-term CA-SYS platform in France
2022
The French National Institute for Agricultural Research (INRA) has established an ambitious experimental infrastructure (the CA-SYS platform) in autumn 2018 after 5 years of co-design with farmers, crop advisors and researchers. CA-SYS covers an area of 125ha divided into 42 fields. The originality of CA-SYS is that it is explicitly conceivedfor the design and evaluation of biodiversity-based and pesticide-free agroecological systems across agriculturallyrealistic scales. An agroecological system will comprise a matrix of fields of one (or a few) cropping systems over anumber of years interacting with adjacent semi-natural habitats (hedges, grass margin strips, flower strips). Thisspatio-te…
Strategic tillage in Conservation Agriculture : consequences on weed communities and winter wheat productivity
2021
In Europe, Conservation Agriculture is currently challenged by higher weed pressure, potential glyphosate ban andreduced crop yield. The introduction of strategic tillage could be a viable option to diversify selection pressures onweeds and increase crop yield. Three types of fallow management (ploughing (CT), reduced tillage (RT), no-till withglyphosate (NT)) were compared on four fields after 17 years of no-plough, which ended with 7 years of NT. Weeddensity, weed composition, crop productivity and yield components were assessed in the following winter wheat.The reintegration of tillage after 17 years of Conservation Agriculture proved to be a major driver of weed communities before weedi…
Can conservation agriculture deeply change the structure of weed communities
2023
International audience
L’« équipement » nécessaire au fonctionnement d’une villa. La villa de Saint-Clément (Yonne)
2022
Dans le comblement d’une cave du bâtiment de la pars urbana, mêlé à des gravats, a été découvert un lot composé de près de 200 objets métalliques, en sus de la clouterie. La cause de la destruction du bâtiment dans le courant de la première moitié du IIIe siècle de notre ère semble être un incendie. L’effondrement rapide d’une partie du bâtiment a scellé bon nombre d’éléments dans la cave (céramique, enduits peints, objets métalliques). La découverte d’un lot de mobilier homogène constituant un ensemble clos illustrant les activités d’un tel établissement à un instant T demeure exceptionnelle.
Le travail de la terre à l’époque gallo-romaine en Lorraine : diversité et technicité des outils en fer
2009
L’outillage agricole en fer chez les Leuques, les Médiomatriques et le sud de la région des Trévires de La Tène à l’époque mérovingienne
2009
Les structures artisanales de la villa de Grigy (Moselle) : apport de l’analyse morphologique des équipements et de l’étude du mobilier métallique à …
2017
International audience
Showing the Invisible: The Economic Cycle of Stone Tools
2023
This contribution takes place in a broader theme, that of “the invisible economy of recyclable materials”. It aims to illustrate the phenomena of recovery of materials from lithic tools and their consequences. The classification of tools by material, although classic, is not relevant from a technical point of view. The material of a tool, in particular its mechanical properties, is to be taken into consideration in its technical analysis, but it cannot constitute a determining criterion in a classification system. Function should come first, as most functional categories use multiple materials. The most striking example, if one can say so, is that of the striking supports, where one finds, …