A5080621312- Soil Carbon and Nitrogen Dynamics
- Agriculture and Rural Development Research
- Crop Yield and Soil Fertility
- Soil and Water Nutrient Dynamics
- Plant nutrient uptake and metabolism
- Soil Management and Crop Yield
- Pesticide and Herbicide Environmental Studies
- Soil and Unsaturated Flow
- Agronomic Practices and Intercropping Systems
- Agriculture Sustainability and Environmental Impact
- Clay minerals and soil interactions
- Phosphorus and nutrient management
- Peatlands and Wetlands Ecology
- Bioenergy crop production and management
- Microbial Community Ecology and Physiology
- Nitrogen and Sulfur Effects on Brassica
- Agriculture, Plant Science, Crop Management
- Botany and Plant Ecology Studies
- Legume Nitrogen Fixing Symbiosis
- Irrigation Practices and Water Management
- Biofuel production and bioconversion
- Climate change impacts on agriculture
- Plant Micronutrient Interactions and Effects
- Soil erosion and sediment transport
- History and advancements in chemistry
Fractionnation of AgroResources and Environment
2015-2024
Université de Reims Champagne-Ardenne
2012-2024
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2024
Centre Hospitalier Universitaire de Reims
2023
Institut National de la Recherche Agronomique
2004-2015
Université Paris-Saclay
2015
Territoires
2013
Unité de Recherche Agrosystèmes tropicaux
2008-2011
Institut National de la Recherche Agronomique du Niger
2010
Département Environnement et Agronomie
1998-2008
Statistical relationships were established between the fate of C and N from 47 types crop residues their biochemical characteristics during a soil incubation at 15°C. The incubations carried out under nonlimiting in order to differentiate effects those availability. Depending on residue, apparent mineralization residue after 168 d varied 330 670 g kg −1 added C. Mineralization kinetics described using two‐compartment decomposition model that decomposes according first‐order kinetics. Amounts...
Land-use practices aiming at increasing agro-ecosystem sustainability, e.g. no-till systems and use of temporary grasslands, have been developed in cropping areas, but their environmental benefits could be counterbalanced by increased N2O emissions produced, particular during denitrification. Modelling denitrification this context is thus major importance. However, to what extent can changes predicted representing the denitrifying community as a black box, i.e. without an adequate...
Abstract Redesigning agrosystems to include more ecological regulations can help feed a growing human population, preserve soils for future productivity, limit dependency on synthetic fertilizers, and reduce agriculture contribution global changes such as eutrophication warming. However, guidelines redesigning cropping systems from natural make them sustainable remain limited. Synthetizing the knowledge biogeochemical cycles in ecosystems, we outline four that synchronize supply of soluble...
Summary When incorporated in soil, plant residues and their decomposition products are close contact with mineral particles which they can be bound to form aggregates. We measured the incorporation of carbon (C) nitrogen (N) derived from crop water‐stable aggregate fractions a silty soil field experiment Northern France using 13 C 15 N‐labelled wheat straw ( Triticum aestivum L.). Soil samples were taken seven times for 18 months separated into slaking‐resistant size analysed total N...
Summary We sought to examine the distribution of carbon (C) decomposition within framework soil pore system. Soils were sampled from a transect having natural gradient in pore‐size distribution. After addition labelled wheat straw ( 13 C) repacked columns incubated (25°C) at water matric potentials either −75 kPa or −5 and for 4 90 days. Pore‐size was determined each column after incubation soils then analysed soluble C, label‐derived residual native biomass nematode abundance, ergosterol...
Summary Despite their role in soil functioning, the ecology of nitrite‐oxidizing bacteria, NOB, and response to disturbances such as those generated by agricultural practices are scarcely known. Over course 17 months, we surveyed potential nitrite oxidation, PNO, abundance Nitrobacter ‐ Nitrospira ‐like NOB (by quantitative PCR) community structure PCR‐DGGE cloning‐sequencing targeting nxrA gene) soils for four treatments: after establishment tillage on a previously no‐tillage system,...
Summary One way to increase the amount of carbon sequestered in agricultural land is convert conventional tillage into no‐tillage systems. This greatly affects location crop residues soil. To investigate impact on soil physical and biological properties how interactions between those influence fate nitrogen soil, we did a laboratory experiment with repacked columns. Doubly labelled 13 C 15 N oilseed rape were incorporated 0–10 cm layer or left surface. The columns incubated for 9 weeks at...
Simulation models are extensively used to predict agricultural productivity and greenhouse gas emissions. However, the uncertainties of (reduced) model ensemble simulations have not been assessed systematically for variables affecting food security climate change mitigation, within multi-species contexts. We report an international comparison benchmarking exercise, showing potential multi-model ensembles nitrous oxide (N2 O) emissions wheat, maize, rice temperate grasslands. Using a...