Search results for "soil"
showing 10 items of 3493 documents
Prévention et gestion de la résistance aux herbicides en grande culture
2017
National audience; L'apparition de mauvaises herbes résistantes aux herbicides a conduit à développer de nouvelles solutions pour gérer la flore adventice. Un des leviers est de diminuer la pression exercée par les molécules herbicides sur les espèces d’adventices en optimisant le désherbage chimique. Cet ajustement doit passer par une alternance des modes d’action des herbicides appliqués sur une parcelle aux échelles annuelle et pluriannuelle. Il peut également passer par des réductions de quantités d’herbicides appliquée à l’échelle de la parcelle en ne traitant que les zones où sont très présentes les mauvaises herbes. La baisse significative de l’usage des herbicides pour lutter contre…
INFLOWEB : un site pédagogique sur les adventices pour aider à leur gestion intégrée
2013
INFLOWEB is a website that collects, summarizes and promotes useful knowledge to help weed management. This educational tool was developed in 2012 by CETIOM, ACTA AgroSup Dijon ARVALIS‐Institut du végétal, FNAMS, INRA, ITAB and ITB, with financial support from the Ministry of agriculture. The website aims to change the farmers weed management relying on an integrated approach of the weed flora. This paper presents the INFLOWEB site and discusses the results of a national survey on the prevalence and abundance of major weeds in crops. The survey was sent in 2011 to advisors, technicians and agronomists.
Soil aggregates and humus systems
2016
The European Society for Soil Conservation Conference, organized by the Babes-Bolyai University will take place from 15th June to the 18th June 2016 at the Babes-Bolyai University of Cluj-Napoca in Cluj-Napoca, Romania. The conference will cover areas like Soils – Our Common Future” stresses the vital interconnection between soil and life, as well as its importance for the future of the human society.; International audience; The survey of few main morphological soil aggregates (with intrinsic biological, chemical and physical contents) reveals the existence of different humus systems. Recognizable by naked eyes in the field, each humus system is confined in an ecological frame (climate, ve…
N2O emissions from cropping systems with integrated weed management
2014
International audience; Integrated weed management (IWM) in cropping systems aims to lower the reliance on herbicides of the crops, by introducing new combinations of agricultural practices in the system development (Munier-Jolain et al, 2009). These combinations may greatly change from a system to another and include a large variety of practices, such as false seed beds, late sowing, mechanical weeding, reduced tillage, specific crop rotations that alternate spring and winter crops, the choice of crop varieties and the use of pesticides with low ecotoxic impacts. Several implemented agricultural practices are likely to alter soil biogeochemical cycles and different components of the greenh…
Impacts environnentaux des TCSL : des effets positifs sur la qualité de l'air et l'effet de serre
2008
International audience
Epandage de matières organiques exogènes : indicateur de potentialité de stockage de carbone dans les sols et définition de classes de disponibilité …
2007
National audience
Assessing of base temperatures and base water potentials for germination of weeds
2013
International audience
Consequences of inbreeding for Centaurea cyanus L., a self-incompatible segetal species
2015
International audience
Adapting trait-based approach to the study of weed communities: the case of the SLA-LDMC trade-off
2010
International audience
Structure and evolution of resistance to acetyl-coenzyme A carboxylase-inhibiting herbicides across the geographical range of the grass weed A. myosu…
2010
International audience