Marie-Helene Jeuffroy

Marie-Helene Jeuffroy
French National Institute for Agriculture, Food, and Environment (INRAE) | INRAE

About

386
Publications
91,874
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
10,246
Citations

Publications

Publications (386)
Article
Addressing the issues that agriculture is currently facing requires disruptive innovations, which may be stimulated through a process of innovative design, enhancing exploration in specific situations. In the aim to equip this process, several researchers implemented 'design workshops'. Yet, the literature poorly describes the way to organize, impl...
Article
Access : https://rdcu.be/cR0Zy If the challenges involved in agroecological transition are to be addressed, cropping systems (CS) need to be changed profoundly, which in turn requires innovative design adapted to local conditions. This is however by no means an easy task since such design activity requires extensive knowledge on objects and proces...
Book
Full-text available
L’usage des pesticides chimiques est une préoccupation sociétale majeure en raison de leurs impacts négatifs sur l’environnement et la santé. Le Programme prioritaire de recherche (PPR) « Cultiver et Protéger Autrement », piloté par INRAE, joue un rôle structurant dans l’évolution des communautés scientifiques et dans l’émergence de fronts de scien...
Article
CONTEXT To support agroecological transition aimed at sharply reducing the use of synthetic inputs, agricultural systems must undergo in-depth change in which biological processes are enhanced with a view to providing ecosystem services. This transformation of the cropping systems requires design processes which should rely on the exploration of sc...
Article
Full-text available
Managing the quality of pea-enriched cakes made from mixes of wheat and pea flours in various proportions (10, 35, and 60 wt% of pea, flour basis) and with various particle size distributions (0, 50, and 100 wt% of particles < 63 µm) is a challenge for the industry. A “multiobjective” model based on an I-optimal response surface design was set up i...
Article
Full-text available
Reducing pesticide use has become a goal shared by several European countries and a major issue in public policies due to the negative impacts of pesticides on the environment and on human health. However, since most of the agri-food sector relies on pesticides in these countries, substantially reducing pesticide use is a complex issue. To overcome...
Article
Cereal-legume intercropping is known to improve the sustainability of crop production. However, it remains uncommon on commercial farms in Europe due to a number of socio-technical lock-ins and the many practical issues raised when integrating intercrops in cropping systems (e.g. which species, cultivars, sowing densities). Crop modelling is an opt...
Article
Full-text available
Favoriser la transition agroécologique suppose de modifier en profondeur les systèmes agricoles, en particulier en valorisant les processus naturels. La conception de systèmes agroécologiques mobilise les connaissances des acteurs, dont les connaissances des agriculteurs acquises par la formalisation. Nous avons dans cet objectif développé trois ou...
Article
Over the last few years, an increasing number of agricultural R&D actors have sought to discover and get to know farmers’ practices that they consider as innovative, unconventional, or promising. We refer to these approaches, all of which aim to support the design of farming systems, as ‘farmer innovation tracking’. There is still a lack of knowled...
Article
Overuse of chemical fertiliser in cereal cropping systems has resulted in severe degradation of air and water quality. Diversifying cropping sequence with legumes provides a natural source of nitrogen (N), but also in-creases N leaching risks after their growing period. Here, we hypothesize that legumes and other break crops, i.e., crops grown to...
Article
Full-text available
With the development of agroecosystem approaches, new cropping systems have to be designed to deliver multiple ecosystem services. In this context, we assessed four innovative cropping systems, designed to reach multiple environmental and production goals, in a long-term field experiment (2009-2020) at Grignon (France, N 48.84°, E 1.95°). A wide ra...
Article
CONTEXT Researchers studying agriculture and researchers studying food share common interests in working on the sustainability of agrifood systems. Yet, they form two distinct scientific communities, which often struggle to work together due to both scientific specialization and existing disconnections between agriculture and food production standa...
Technical Report
Dry pulses and forage legumes have great potential for food, feed and provision of ecosystem services. While existing studies already explored ways to feed the world by 2050 and how to benefit from legume services within cropping systems, there is little knowledge about impacts of scaling out legume-based cropping systems. These impacts will depend...
Article
Full-text available
La France est l'un des premiers producteurs européens d'orge brassicole et le premier exportateur mondial de malt. Les intrants utilisés sur cette culture participent aux émissions de gaz à effet de serre du secteur agricole et peuvent indirectement entrainer des effets négatifs sur la santé des consommateurs. Actuellement, la production d'orge bra...
Article
Mineral nutrition of crops along with N, P, and K fertilization decisions in cropping systems have long been based on crop yield responses to individual elements for determining the optimum rate of application of fertilizers for maximum yield. Owing to the great uncertainty for estimating or forecasting these response curve parameters, farmers ofte...
Article
Nitrogen (N) fertilizer is commonly applied to wheat crops (Triticum aestivum L.) during the vegetative growth to meet crop requirements. Current decision rules for N application result in N losses to the environment, and thus to low N use efficiency, due to excess of N fertilizer and/or poor synchrony between soil supply and crop N demand. Despite...
Presentation
Malgré les nombreux bénéfices environnementaux et alimentaires des légumineuses, et malgré la diversité des espèces et des modes de culture, ces plantes restent peu cultivées en Europe. Les impacts du développement des légumineuses dans les parcelles agricoles dépendent des cultures impliquées, de leur conduite et de leur insertion dans les systèm...
Article
Camelina [Camelina sativa (L.) Crantz] is an emerging oilseed crop combining both industrial and agronomic advantages. Camelina seed yield, oil and protein contents, and fatty-acid composition, vary across genotypes, environments, and agricultural practices. However, no studies have been conducted to identify and rank major limiting factors explain...
Article
Full-text available
The development of local diversification value-chains requires the design and implementation of cropping systems adapted to a diversity of farms and the management of crops for which very little knowledge is available. In this article, using the example of camelina in northern France to supply a local oilseed biorefinery, we illustrate how (i) the...
Article
The investigation dealt with the effect of the replacement of a part of wheat flour by pea flour on the properties of batters and cakes. As the protein composition of pea flour differs from that of wheat, the effect of its incorporation on batter formation and cake properties was monitored throughout the different steps of cake processing. The inco...
Article
Innovation is central to the strategic orientations of many agronomic research institutes. Little attention has been paid, however, to the links between knowledge production and design processes, defined as processes resulting in the creation of new objects in pursuit of specific goals. Our aim was to analyze the conditions and specificities of the...
Article
Cereal-legume intercropping has gained increased interest in Europe. Nevertheless, performance and especially the percentage of each species at harvest are often considered highly variable. Nitrogen (N) fertilisation can be a relevant driving factor affecting the percentage of each species at harvest. Soil N availability influences competition for...
Article
Full-text available
Legume crops have a number of advantages for dealing with current environmental and food challenges. However, the area under grain and forage legumes has greatly decreased in recent decades in Europe. Attempts to foster the development of legumes will require the sharing and coordination of the visions, objectives, strategies and actions of differe...
Article
French and EU policies have been only partially successful in promoting the restoration of groundwater quality. The currently proposed measures are scientifically valid but ineffective in encouraging farmers to change their practices over the longer term. Participatory approaches have been developed for co-designing scenarios at cropping system or...
Article
Full-text available
Diversification of cropping systems has been proposed as a major mechanism to move towards sustainable cropping systems. To date, a diversification option that has received little attention is introduction of ley pastures into cropping systems, but the use of ley pastures is challenged by most future-oriented scenarios aiming to feed the world sust...
Article
Full-text available
Grain legumes are known for their benefits to deliver ecosystem services on provisioning of protein-rich food and feed, reducing greenhouse gas emissions through the symbiotic nitrogen fixation function and diversification of cropping systems. Intercropping is an agroecological practice in which two or more crop species are grown simultaneously in...
Article
Farmers and farm advisors need a decision support system (DSS) to develop multiperformant weed management strategies adapted to economic, social and environmental stakes and farmers' constraints. We worked with future users, farmers, and crop advisors to define the uses and type of DSS they needed, via an online survey, group meetings and workshops...
Article
The use of crop mixtures can help to reduce environmental impacts of agriculture, while maintaining, or even increasing yield. However, farmers seldom use crop mixtures, due to a combination of obstacles characterizing a sociotechnical lock-in. The dominant system remains the cultivation of pure crops, with acknowledged environmental impacts, but s...
Book
Ce chapitre aborde les méthodes de conception de systèmes agricoles pour préserver la ressource en eau. Il s’agit de méthodologies importantes, en plein essor, justifiées par le besoin de porter une réflexion au-delà de la seule optimisation des systèmes agricoles actuels pour assurer une réelle gestion durable des ressources en eau. Les auteurs de...
Article
Full-text available
Grain-legume crops are important for ensuring the sustainability of agrofood systems. Among them, pulse production is subject to strong lock-in compared to soya, the leading worldwide crop. To unlock the situation and foster more grain-legume crop diversity, scientific research is essential for providing new knowledge that may lead to new developme...
Article
Full-text available
L'association céréale-légumineuse présente des avantages aux niveaux agronomique (moins d'engrais et de pesticides, productivité accrue) et nutritionnel (profil protéique plus équilibré que la céréale seule). Pour limiter la consommation énergétique au long de la filière, il peut même être intéressant de récolter et transformer en farine les deux t...
Article
Full-text available
Camelina (Camelina sativa L. Crantz) is a minor oilseed crop identified as a candidate crop for biorefinery in Europe. This crop should therefore meet specific quantitative, qualitative and environmental requirements. Weeds have been identified as a major problem for growing camelina. Weed competition may result in low camelina yields and poor seed...
Technical Report
Full-text available
Production agricole et transformation alimentaire demeurent encore aujourd’hui deux champs de recherche fortement déconnectés. En effet, les chercheurs qui étudient la production agricole et les chercheurs qui s’intéressent aux aliments et à la transformation alimentaire constituent deux communautés scientifiques distinctes, qui, bien que partagean...
Article
Full-text available
The use of composite wheat-pea flours is of nutritional interest because their essential amino acid profile is closer to human needs than that of wheat alone. However, composite flours might be more variable than wheat flour alone, so manufacturers need to be able to monitor the quality of the cakes. The effects of the quality of the raw material a...
Article
Background and objectives Particle size distribution and damaged starch content have a major impact on flour quality because they influence the behavior of flour during hydration in processing. Particle size distribution and starch damage of legume flours and their relationship during grinding have not been evaluated. The standard enzymatic method...
Article
Full-text available
Legume cultivation has been declining for several decades in France and in Europe as a whole. This is the result of the agri-food system lock-in around major crops, which has led to a strong simplification of cropping systems and a specialization of territories, in which legumes have been marginalized. Introducing or increasing legume production on...
Article
Full-text available
Les associations d’espèces valorisent efficacement les processus de régulations biologiques et lesressources naturelles, et permettent de réduire l’utilisation des intrants, tout en améliorant lesperformances des systèmes de culture. Elles constituent ainsi des innovations intéressantes pourrelever les défis de l’agriculture, mais sont aujourd’hui...
Article
Full-text available
Ce numéro est constitué d’articles issus de la seconde édition des Rencontres Francophones sur les Légumineuses (RFL2) qui s’est tenu à Toulouse (France) les 17 et 18 octobre 2018.
Article
Full-text available
Ce numéro est constitué d’articles issus de la seconde édition des Rencontres Francophones sur les Légumineuses (RFL2) qui s’est tenu à Toulouse (France) les 17 et 18 octobre 2018.
Article
Full-text available
New cropping systems are needed to meet the increasing demand for sustainable feedstock for food, feed, fibre, and fuel. However, the lack of agronomic knowledge has been shown to hinder the introduction of new crops in current cropping systems. In design sciences, the C-K theory, which was developed to model design logics, shows that a design proc...
Presentation
Full-text available
Dans cette étude nous nous intéressons aux trajectoires de changement technique dans les exploitations agricoles afin de comprendre le processus de changement relatif à l’insertion des légumineuses dans les exploitations. Pour cela, nous avons mobilisé un cadre conceptuel conçu pour décrire les trajectoires de changement à partir de (1) phases de c...
Presentation
Full-text available
Les agriculteurs sont source d’innovations et adaptent continuellement leurs systèmes de culture pour améliorer leurs performances (économique, environnementale…), pour accroître leur résilience face aux changements (climatique, réglementation, prix) et en tenant compte de nouveaux objectifs (réduction des pesticides, perte de biodiversité…). Aujou...
Article
Full-text available
Crop diversification can improve the sustainability of Western agriculture. In particular, pulses are crops that can help both agriculture and the food industry become more ecological, as they reduce greenhouse gas emissions and help reduce animal-based consumption. Today, however, the development of these crops in Europe has been hindered due to l...
Article
Full-text available
Nitrogen fertilizer applications are essential to achieve high yield and malting specifications in barley, but may also have a deleterious effect on the environment. Most strategies currently being implemented aim to optimize quantitative and qualitative production without taking environmental concerns into account. We used a barley crop model to p...
Chapter
Full-text available
Plantes dicotylédones de la famille botanique des Fabacées, les légumineuses se différen-cient des autres cultures surtout par leur alimentation azotée : leur croissance optimale ne nécessite pas d'intrants azotés, car elles ont la capacité unique d'utiliser l'azote de l'air ambiant grâce à une symbiose avec des bactéries fixatrices d'azote présent...
Article
Full-text available
The adaptation of genotypes to environmental conditions is one of the main levers for maintaining an acceptable level of production, both in terms of quality and quantity. To breed suitable genotypes and for the farmers to choose the most adapted one to his farm conditions, the factors affecting production must be precisely characterized. Here, we...
Article
Full-text available
Increasing societal demand for a more ecological agriculture stimulates demand for farm management systems adapted to non-standard situations such as low-nitrogen systems. However, trade-offs between traits of interest could make difficult to reach high agronomic and environment performances. For malting barley, premium prices depend on grain prote...
Presentation
Full-text available
La part des légumineuses dans les exploitations agricoles est en déclin depuis plusieurs dizaines d’années en France et en Europe. Ce phénomène résulte d’un verrouillage du secteur agri-alimentaire autour des espèces majeures, se traduisant par la simplification forte des systèmes et la spécialisation des territoires, marginalisant ainsi les légumi...
Article
Producing biofuels from crops is controversial due to environmental issues and to food security threats linked with the dedication of land to energy crops rather than to food production. The 2009 European Renewable Energy Directive defined the reduction of greenhouse gas (GHG) emissions as an essential requirement for biofuels. Whatever their speci...
Article
Full-text available
Models are promising tools to support the design of cropping systems toward sustainable agriculture. Process-based deterministic models are predominantly used, whereas most of them involve a limited range of crop techniques, and are unsuited to organic agriculture. Moreover, their parameterization and local adaptation require a large amount of expe...
Article
Controlling groundwater diffuse pollution induced by agricultural practices remains a significant challenge and has been receiving strong attention in the European Union (EU) for the last 25 years. The EU’s Nitrates Directive (91/676EC) and its associated Nitrate Vulnerable Zone (NVZ) legislation were recently revised in France in 2015, requiring f...
Conference Paper
Full-text available
The proportion of legumes cultivated in farms has been declining for several decades in France and in Europe. This is the result of the agri-food system lock-in around major crops, which has led to a strong simplification of cropping systems and a specialization of territories, in which legumes have been marginalized (Magrini et al, 2016). Yet, as...
Presentation
Full-text available
In this presentation, we propose to use a theoretical framework based on design theory in order to manage a pool of innovative design tools and methods. We apply this generic framework to five innovative design methods related to the IDEAS initiative. Led by researchers of the French National Institute for Agronomy research, IDEAS helps developing,...
Article
Modern agriculture has led to simpler agricultural landscapes that favour the spread of pathogens and increase pressure from pests and diseases. Landscape-dependent interactions between crops and pathogens, including disease related dispersal patterns, and the benefits of reducing pathogen significance call for the design of disease-suppressive lan...
Article
Full-text available
In France, a single science-based model has dominated winter wheat N fertilizer management for 40 years. Despite scientific progress, it remains challenging to minimize N losses whilst maximizing grain yield and achieving satisfactory grain protein content. A mismatch between the science-based method and its implementation has been demonstrated. We...
Article
Full-text available
Ce numéro « Diversité des agricultures » est constitué d’articles issus des réflexions des groupes filières de l’Inra. Il brosse un panorama de la diversité agricole à l’œuvre dans les filières, en analyse les drivers et les déterminants, s’interroge sur la diversité comme source de résilience et en tire des enseignements en matière de besoins de r...
Article
Ce numéro « Diversité des agricultures » est constitué d’articles issus des réflexions des groupes filières de l’Inra. Il brosse un panorama de la diversité agricole à l’œuvre dans les filières, en analyse les drivers et les déterminants, s’interroge sur la diversité comme source de résilience et en tire des enseignements en matière de besoins de r...
Article
The agriculture, forestry and other land use sector are responsible for 24% (10–12 Pg CO2e per year) of anthropogenic greenhouse gas (GHG) emissions worldwide, with concomitant opportunities for mitigation. A scientific panel used deliberative methods to identify ten technical measures comprising 26 sub-measures to reduce GHG emissions from agricul...
Article
Full-text available
During the 90s and 2000s, the nitrate losses through leaching during the winter period following a given crop have been widely studied in France and abroad. This study quantifies soil mineral nitrogen contents and nitrate leaching during the second autumn-winter period after harvest of a pea, a rapeseed or a wheat. Nitrate leaching during successiv...