Grisafi, Francesca Tombesi, Sergio Farinelli, Daniela Costes, Evelyne Durand, Jean-Baptiste Boudon, Frédéric
Hazelnut (Corylus avellana) cultivation is increasing worldwide. A 3D model of its structure could improve the managerial techniques such as pruning. This study aims to analyse, over two successive years, hazelnut architectural development to implement a functional structural plant model. 104 one-year-old shoots of own-rooted hazelnut trees were se...
Christina, Mathias Mézino, Mickaël Le Mézo, Lionel Todoroff, Pierre
Climate change is expected to have important consequences for sugarcane production due to global warming, changes in precipitation patterns, and changes in the frequency of extreme weather events. A key application of crop growth simulation models is to help understand and predict the effects of and interactions between, climate, soil, and manageme...
Couedel, Antoine Falconnier, Gatien N. Adam, Myriam Cardinael, Rémi Boote, Kenneth J. Justes, Eric Smith, Ward N. Whitbread, Anthony M. Affholder, François Balkovic, Juraj
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Food insecurity in sub-Saharan Africa is partly due to low staple crop yields, resulting from poor soil fertility and low nutrient inputs. Integrated soil fertility management (ISFM), which includes the combined use of mineral and organic fertilizers, can contribute to increasing yields and sustaining soil organic carbon (SOC) in the long term. Soi...
Dumont, Yves Duprez, Michel
The sterile insect technique (SIT) is a biological control technique that can be used either to eliminate or decay a wild mosquito population under a given threshold to reduce the nuisance or the epidemiological risk. In this work, we propose a model using a differential system that takes into account the variations of rainfall and temperature over...
Perez, Raphaël Vezy, Rémi Bordon, Romain Laisne, Thomas Roques, Sandrine Rebolledo Cid, Maria Camila Rouan, Lauriane Fabre, Denis Gibert, Olivier De Raissac, Marcel
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Monoculture systems in South East Asia are facing challenges due to climate change-induced extreme weather conditions, leading to significant annual production losses in rice and oil palm. To ensure the stability of these crops, innovative strategies like resilient agroforestry systems need to be explored. Converting oil palm (Elaeis guineensis) mo...
Ardourel, Gilles Cantin, Guillaume Delahaye, Benoît Derroire, Géraldine Funatsu, Beatriz M. Julien, David
In this paper, we assess the regrowth capacity of tropical forest plots by developing an original computational procedure based on statistical model checking methods. We calibrate a new mathematical model of forest dynamics with respect to post-logging data, produced in the Amazon basin. Our mathematical model is determined by a mechanistic system ...
Moudjieu Leumbe, Etienne Fabrice Mortier, Frédéric Takam Soh, Patrice Picard, Nicolas Allah-Barem, Félix Baya, Fidèle Tadesse, Mahlet G. Rossi, Vivien
The understanding of tree growth processes is crucial for promoting sustainable forest management strategies. This is a challenging task in highly biodiverse ecosystems where many tree species are observed on very few individuals and the small sample sizes hinder a good fit of species-specific models. We propose the use of finite mixture of random ...
Pleydell, David R.J. Ndong Bass, Innocent Mba Djondzo, Flaubert Auguste Meta Djomsi, Dowbiss Kouanfack, Charles Peeters, Martine Cappelle, Julien
Since 1976 various species of Ebolavirus have caused a series of zoonotic outbreaks and public health crises in Africa. Bats have long been hypothesised to function as important hosts for ebolavirus maintenance, however the transmission ecology for these viruses remains poorly understood. Several studies have demonstrated rapid seroconversion for e...
Dorey, Elodie Meynard, Charles Lakhia, Kelly Ruille, Marie Dorel, Marc
Dans les bananeraies intensives conventionnelles, la fertilisation, essentiellement minérale, vise à satisfaire les besoins nutritionnels des bananiers mais ne permet pas d'assurer un stock de matière organique suffisant pour maintenir une fertilité des sols optimale. Or, l'utilisation de fertilisants organiques complexifie le raisonnement de la fe...
Seghouani, Mounir Bravin, Matthieu Mollier, Alain
Crops need adequate mineral nutrition to ensure optimal growth and yield. Nitrogen (N) and phosphorus (P) are two major elements that are essential for crop growth. However, situations of N-P colimitation are frequent in agroecosystems. Hence, our ability to optimize crop production under these conditions depends on our ability to analyze and predi...