Auteurs, date et publication :
Auteurs Benjamin Pauget , Frédéric Gimbert , Michaël Coeurdassier , Nadia Crini , Guénola Pérès , Olivier Faure , Francis Douay , Adnane Hitmi , Thierry Beguiristain , Aude Alaphilippe , Murielle Guernion , Sabine Houot , Marc Legras , Jean-François Vian , Mickaël Hedde , Antonio Bispo , Cécile Grand , Annette de Vaufleury
Publication : Ecological Indicators
Date : 2025
Volume : 29
Pages : 445-454
Catégorie(s)
#INRAE #PRO #PRO Colmar #PRO QualiAgroRésumé
The potential contributions of exogenous organic matters (EOMs) to soil organic C and mineral N supply depend on their C and N mineralization, which can be assessed in laboratory incubations. Such incubations are essential to calibrate decomposition models, because not all EOMs can be tested in the field. However, EOM incubations are resource-intensive. Therefore, easily measurable EOM characteristics that can be useful to predict EOM behaviour are needed. We quantified C and N mineralization during the incubation of 663 EOMs from five groups (animal manures, composts, sewage sludges, digestates and others). This represents one of the largest and diversified set of EOM incubations. The C and N mineralization varied widely between and within EOM subgroups. We simulated C and N mineralization with a simple generic decomposition model. Three calibration methods were compared. Individual EOM calibration of the model yielded good model performances, while the use of a unique parameter set per EOM subgroup decreased the model performance, and the use of two EOM characteristics to estimate model parameters gave an intermediate model performance (average RMSE-C values of 32, 99 and 65 mg C g−1 added C and average RMSE-N values of 50, 126 and 110 mg N g−1 added N, respectively). Because of the EOM variability, individual EOM calibration based on incubation remains the recommended method for predicting most accurately the C and N mineralization of EOMs. However, the two alternative calibration methods are sufficient for the simulation of EOMs without incubation data to obtain reasonable model performances.
Auteurs, date et publication :
Auteurs Florent Levavasseur , Gwenaelle Lashermes , Bruno Mary , Thierry Morvan , Bernard Nicolardot , Virginie Parnaudeau , Laurent Thuriès , Sabine Houot
Publication : Soil Use and Management
Date : 2025
Volume : 38
Issue : 1
Pages : 411-425
Catégorie(s)
#INRAE #PRO #PRO Colmar #PRO QualiAgroRésumé
The long-term experiment PROspective site is located at the Colmar Experimental Centre of the French National Research Institute for Agriculture, Food and Environment (INRAE), in Colmar (Haut-Rhin, France; 48◦03’33’’ N, 7◦19’42’’ E, altitude 200 m). It is positioned on a silt–silt clayey calcisol soil. The upper horizon includes a plough layer (i.e., topsoil), which is carbonated. The climate is semicontinental, with a mean annual precipitation of 559 mm received mostly between May and October and an average annual air temperature of 11.3 ◦C. It is cropped with a rotation of maize, winter wheat, sugar beet and barley. Each organic waste product application are made before maize or sugar beat every 2 years most often in February, at doses equivalent to 170 kg N ha−1 (Michaud et al. 2021, Chen et al. 2022). // The figure in attached file presents the experimental plan of the PROspective long-term field experiment. The 2-ha field experiment is divided into 2 sub-devices “With_N” and “Without_N” including 24 plots of 10 m × 9 m in 4 blocks of replicates and a fifth block devoted to the following of the nitrogen dynamic with bare plots or control plots without mineral fertilization. The following organic waste products are randomly distributed within each block: Sewage sludge (SLU), Co-compost of sewage sludge with green waste and wood chips (GWS), Co-compost of the home-sorted fermentable fraction of municipal solid waste and green waste, also called biowaste compost (BIOW), Farmyard manure from a dairy farm (FYM), Compost of farmyard manure (CFYM), No organic amendment (control, or CN). // From 2000 to 2019, two phases were carried out in the PROspective long-term experiment as presented in the attached table, with the treatments randomly distributed in the 2 sub-devices, as follows: In the sub-device “with_N” in 2000–2019 on all plots of the blocks 1 to 4, additional mineral N fertilization was applied at doses between 0 and 170 kg N ha−1. In the sub-device “without_N”, in 2000-2014 on all plots no additional mineral N fertilization was applied; in 2015-2019 additional biowaste digestate (DIG) was applied at doses between 0 and 170 kg N ha−1.
Auteurs, date et publication :
Auteurs Aurélia Michaud , Denis Montenach , Florent Levavasseur , Sabine Houot
Date : 2023
Catégorie(s)
#INRAE #PRO #PRO ColmarRésumé
Volatile Organic Compounds (VOCs) are reactive compounds essential to atmospheric chemistry. They are mainly emitted by living organisms, and mostly by plants. Soil microbes also contribute to emissions of VOCs. However, these emissions have not yet been characterised in terms of quality and quantity. Furthermore, longterm organic matter amendments are known to affect the microbial content of soils, and hence the quantity and quality of VOC emissions. This study investigates which and how much of these VOCs are emitted from soil amended with organic waste products (OWPs). Four OWPs were investigated: municipal solid waste compost (MSW), green waste and sludge co-compost (GWS), bio-waste compost (BIOW) and farmyard manure (FYM). These OWPs have been amended every two years since 1998 until now at a rate of ~4 tC ha−1. A soil receiving no organic inputs was used as a reference (CN). VOCs emissions were measured under laboratory conditions using a Proton Transfer Reaction-Quadrupole ion guide Time of Flight-Mass Spectrometry (PTR-QiToF-MS). A laboratory system was set up made of two Pyrex chambers, one for samples and the second empty, to be used as a blank. Our results showed that total VOC emissions were higher in BIOW than in MSW. Further findings outlined that the most emitted compounds were acetone, butanone and acetaldehyde in all treatments, suggesting a common production mechanism for these compounds, meaning they were not affected by the OWP amendment. We isolated 21 VOCs that had statistically different emissions between the treatments and could therefore be considered as good markers of soil biological functioning. Our results suggest that organic matter and pH jointly influenced total VOC emissions. In conclusion, OWPs in soil affect the type of VOC emissions and the total flux also depends on the pH of the soil and the quantity of organic matter.
Auteurs, date et publication :
Auteurs Letizia Abis , Benjamin Loubet , Raluca Ciuraru , Florence Lafouge , Samuel Dequiedt , Sabine Houot , Pierre Alain Maron , Sophie Bourgeteau-Sadet
Publication : Science of The Total Environment
Date : 2025
Volume : 636
Pages : 1333-343
Catégorie(s)
#ANR-Citation #INRAE #PRO #PRO QualiAgroRésumé
We tested if a single soil P capacity test allows for a reliable forecast of P leaching from agricultural soils with a high P load. In regions with intensively managed arable soils, the soil P content has been dramatically increased by overfertilization with significant P leaching losses as a result. As a consequence, in order to control the P losses, P fertilization has been legally restricted. In several EU28 countries, the ammonium lactate extraction method (P-AL) is used as a soil test for P fertilizer advice, but sometimes also to determine the allowed P fertilizer dose to reduce leaching losses. We hypothesize that P-AL as an estimator of soil P capacity should be combined with 0.01 M CaCl2 extractable P (P-CaCl2) and/or hot water extractable P (HWP), both estimators of the soil P intensity, to predict P leaching losses in soils with a high P load.
Auteurs, date et publication :
Auteurs T. Vanden Nest , B. Vandecasteele , G. Ruysschaert , R. Merckx
Publication : Agriculture, Ecosystems & Environment
Date : 2025
Volume : 237
Pages : 55-65
Catégorie(s)
#INRAE #PRO #PRO QualiAgroRésumé
Increasing attention has been placed on the agroecological impact of applying exogenous organic matter (EOM) amendments, such as green waste compost (GWC) and livestock manure, to agricultural landscapes. However, monitoring the frequency and locality of this practice poses a major challenge, as these events are typically unreported. The purpose of this study is to evaluate the utility of Sentinel-2 imagery for the detection of EOM amendments. Specifically, we investigated the spectral shift resulting from GWC and manure application at two spatial scales, satellite and proximal. At the satellite scale, multispectral Sentinel-2 image pairs were analyzed before and after EOM application to six cultivated fields in the Versailles Plain, France. At the proximal scale, multi-temporal spectral field measurements were taken of experimental plots consisting of 14 total treatments: EOM variety, amendment quantity (15, 30 and 60 t.ha−1) and tillage. The Sentinel-2 images showed significant spectral differences before and after EOM application. Exogenous Organic Matter Indices (EOMI) were developed and analyzed for separative performance. The best performing index was EOMI2, using the B4 and B12 Sentinel-2 spectral bands. At the proximal scale, simulated Sentinel-2 reflectance spectra, which were created using field measurements, successfully monitored all EOM treatments for three days, except for the buried green waste compost at a rate of 15 t.ha−1.
Auteurs, date et publication :
Auteurs Maxence Dodin , Hunter D. Smith , Florent Levavasseur , Dalila Hadjar , Sabine Houot , Emmanuelle Vaudour
Publication : Remote Sensing
Date : 2021
Volume : 13
Issue : 9
Pages : 1616
Catégorie(s)
#INRAE #PRO #PRO QualiAgroAuteurs, date et publication :
Auteurs E. Vaudour , L. Bel , J.M. Gilliot , Y. Coquet , D. Hadjar , P. Cambier , J. Michelin , S. Houot
Publication : Soil Science Society of America Journal
Date : 2025
Volume : 77
Pages : 2122–2139
Catégorie(s)
#INRAE #PRO #PRO QualiAgroRésumé
To implement agricultural practices that are more respectful of the environment, precision agriculture methods for monitoring crop heterogeneity are becoming more and more spatially detailed. The objective of this study was to evaluate the potential of Ultra-High-Resolution UAV images with centimeter GNSS positioning for plant-scale monitoring. A Dji Phantom 4 RTK UAV with a 20 MPixel RGB camera was used, flying at an altitude of 25 m (0.7 cm resolution). This study was conducted on an experimental plot sown with maize. A centimeter-precision Trimble Geo7x GNSS receiver was used for the field measurements. After evaluating the precision of the UAV’s RTK antenna in static mode on the ground, the positions of 17 artificial targets and 70 maize plants were measured during a series of flights in different RTK modes. Agisoft Metashape software was used. The error in position of the UAV RTK antenna in static mode on the ground was less than one centimeter, in terms of both planimetry and elevation. The horizontal position error measured in flight on the 17 targets was less than 1.5 cm, while it was 2.9 cm in terms of elevation. Finally, according to the RTK modes, at least 81% of the corn plants were localized to within 5 cm of their position, and 95% to within 10 cm.
Auteurs, date et publication :
Auteurs Jean-Marc Gilliot , Dalila Hadjar , Joël Michelin
Publication : Remote Sensing
Date : 2022
Volume : 14
Issue : 10
Pages : 2391
Catégorie(s)
#ANR-Citation #INRAE #PRO #PRO QualiAgroAuteurs, date et publication :
Auteurs Francesca Ricci , Laure Bentze , David Montagne , Sabine Houot , Michel Bertrand , Céline Pelosi
Publication : Soil organisms
Date : 2025
Volume : 87
Issue : 2
Pages : 71-83
Catégorie(s)
#⛔ No DOI found #INRAE #PRO #PRO QualiAgroRésumé
Repeated applications of organic waste products (OWP) are a source of trace elements (TE) inputs to agricultural topsoils. The present study aimed at (i) assessing the effects of repeated OWP inputs on the chemical properties of topsoils in two long-term field experiments (13 and 15 years; calcareous and non-calcareous soils), (ii) evaluating TE phytoavailability and their transfer to grain (winter wheat and maize) and (iii) identifying the underlying factors causing alterations of TE phytoavailability. In both field experiments, receiving compliant or slightly high doses of OWP in compliance with regulations, OWP and soil physicochemical properties and TE concentrations in soils and grains were determined. In situ phytoavailability of TE was assessed at two juvenile crop growth stages by analyzing TE concentrations in shoot plantlets. Depending on the OWP input amount, results showed that compared to the soil receiving no organic amendment, repeated OWP inputs significantly increased soil organic carbon content, pH, cation exchange capacity, total soil Cu, Mo and Zn concentration and the phytoavailability of Mo, while the phytoavailability of Cd, Mn, Ni and Tl was significantly reduced. No notable effect was observed for Cr, Cu, Hg, Pb and Zn phytoavailability. Statistical approaches suggested that due to the repeated OWP applications, increased soil organic carbon content and pH, were likely responsible for decreased TE phytoavailability (e.g., Cd).
Auteurs, date et publication :
Auteurs Aurélia Marcelline Michaud , Valérie Sappin-Didier , Philippe Cambier , Christophe Nguyen , Noémie Janot , Denis Montenach , Lana Filipovic , Valentin Deltreil , Sabine Houot
Publication : Agronomy
Date : 2021
Volume : 11
Issue : 4
Pages : 664