Can soil-crop models mostly tested in temperate conditions be relevant under tropical conditions to simulate long-term #soilorganiccarbon #yields? A study based on 4 trials in Kenya 🇰🇪 @mcorbeels.bsky.social @gatienfalconnier.bsky.social @johansix.bsky.social authors.elsevier.com/sd/article/S...

New #openaccess paper from the PhD thesis of @souleymanejules.bsky.social 👏 ! We monitored during 2 years surface albedo in conventional tillage, no tillage, & no tillage with mulch (maize residues) at 2 long-term experiments in Zimbabwe, and having 2 different soil types: doi.org/10.1016/j.st...

La Une de Libération du 18 juillet 2025. Versus la Mer de Glace en 1950.

#IPCC's 2022 #ClimateReport shows heatwaves in Europe will become more frequent, more intense & will last longer. By 2050, about half of the European population may be exposed to high or very high risk of heat stress during summer. ➡️ bit.ly/IICpt13

@ketanjoshi.co provides a very helpful alternative figure as a rejoinder to the primary energy graph in my first post in this thread... bsky.app/profile/keta...

Earlier this year, Chen et al. @science.org showed that droughts are intensifying globally, with warming. www.science.org/doi/full/10.1126/science.ado4245, Now, Gebrechorkos et al. @nature.com confirms the same findings. Very important work, but not wholly novel doi.org/10.1038/s415...

"These techniques are all however considered more expensive or energy-intensive than cutting emissions in the first place by burning fewer fossil fuels"

Last week I defended my 'Habilitation à diriger des Recherches' Thanks to those who attended! Thanks to the fantastic jury: L.Alletto A.METAY L.Hossard L.Bell R.Zougmore G.Martin G. Corre-Hellou The slide deck: lnkd.in/g-eJik8P The HDR manuscript: lnkd.in/gF4XcmnU

Cropping season over in Zimbabwe 🇿🇼 ! After cowpea a few weeks ago, maize 🌽 has now been harvested at our rainfall exclusion site at the University of Zimbabwe @cirad.bsky.social. Yields will for sure be much higher than during the once-in-century El Nino drought last year.

So exciting to see our commentary out! With a super team of Yean-Uk Kim of @zalf.bsky.social, @alexruane.bsky.social of @agmip.bsky.social and @robertfinger.bsky.social, we outline needed advances for more robust risk assessments of cropping systems. www.nature.com/articles/s43...

Great work by PPS colleagues: Intensifying legumes with phosphorus fertiliser and inoculants in smallholder fields increases yields and reduces weed pressure, enabling greater resilience to weeding delays and more flexible farm management shorturl.at/SnHYu

Low yielding and low data in smallholder farming systems is not a question of fate. I was able to talk on the topic at the last #AgMIP10 conference youtu.be/gAAFJtg2Qb0?...

"Le moins que l’on puisse dire, c’est que la doctrine de l’excellence scientifique ne suit pas une démarche scientifique." www.liberation.fr/debats/2020/...

📢 Great postdoc (3 years) opportunity in our group @cirad.bsky.social in the FairCarboN #ALAMOD project to coordinate a modeling excercice @agmip.bsky.social on #soilorganicmatter and nitrogen dynamics in tropical cropping systems. Deadline: 08/05/25 recrutement.cirad.fr/job/job-rese...

Transdisciplinary coordination is essential for advancing agricultural modelling with machine learning. The opportunities are great, but to avoid pitfalls, we need to establish benchmarks, evaluation criteria and best practices. Our perspective: www.cell.com/one-earth/fu... @cp-oneearth.bsky.social

Interesting opinion in Science suggesting to replace 'scientific consensus' with convergent evidence. Because it is less easily derailed by quoting one dissenting opinion. Seems like a good idea! www.science.org/doi/10.1126/...

In a new paper, we propose the 'ecological yield gap' as a framework to strengthen collaboration between agronomists and ecologists in our quest to enhance on-farm ecosystem services in ways that effectively sustain crop yields while minimising input use: doi.org/10.1016/j.gf... 🧪🌱🌾🧑‍🌾🐞💚🤎

📢 New #PhD offer. You have a MSc degree in agronomy, soil science or plant ecophysiology AND you are from Kenya? This offer might be for you. "Contribution of #agroforestry systems 🌳 🌽 🥑 🐐 to provisioning ecosystem services, #climatechange adaptation and mitigation in Kenya" Deadline: 31.05.2025.

Could drought and poor soil undermine the performance of intercropping ? Our study in semi-arid Zimbabwe found that the benefits of intercropping are maintained even with water and N stress. doi.org/10.1016/j.fc... Congrats Illiana Kwenda - A nice combination of field experiments and modelling

Check out this paper just published by our colleague Antoine Couëdel @cirad.bsky.social in @naturefood.bsky.social Statistical approaches are inadequate for accurate estimation of yield potential and gaps at regional level www.nature.com/articles/s43...

🌍 We hosted the 10th #AgMIP Global Workshop at #CIMMYT, where global leaders tackled urgent conversations! From science & policy to crop modeling, we’re advancing #FoodSecurity and a #Sustainable future. 🌱

Carbon #sequestration in #agroforestry 🌳 🌽 🥑 🐄 is a hot topic. Here we provide #openaccess guidelines to improve the quantification & reporting of carbon stocks in #soils & #biomass & additional #carbon storage in agroforestry systems, and to maximize manuscript acceptance. doi.org/10.1007/s104...

Interested in participatory approaches and spatial modelling applied to smallholder farming system? ➡️ we have a PhD opportunity in the #GALILEO project on #agroforestery for #climatechange resilience! 🌍🧑‍🌾🌳🌽 📅Deadline : 11 May 2025 📝Modalities : gaia.umontpellier.fr/documents/SU...

#AgMIP10 officially launched this morning, but we hosted seven pre-workshop Side Meetings yesterday, including the GGCMI, Wheat, Ozone, Global Econ, Low-Input, and Calibration #AgMIPTeams.

#Agmip10 Understanding of nutrient soil supply is key to design relevant srategies for fertility management in smallholder system We are kick-starting a new Agmip intercomparison to asses how well models deal with soil organic matter mineralisation

#JustOut #openaccess Combining two years of on-farm experiments & modeling with the STICS soil-crop model, we showed that land productivity benefits of maize-cowpea #intercropping can be maintained in conditions of high water and nitrogen stress @gatienfalconnier.bsky.social doi.org/10.1016/j.fc...

A few aerial pictures from some of our on-farm experiments and demo plots in Murehwa & Mutoko districts, 🇿🇼. Beautiful landscape as always in 🇿🇼 🤩! #intercropping #mulch #manure #fertilizers #RAIZ_project @cirad.bsky.social @cimmyt.bsky.social @gatienfalconnier.bsky.social @kelvinchipoyi.bsky.social

A great group !!

📢 You are from Sub-Saharan Africa, have a MSc in biological science? Here is a PhD offer in 🇰🇪 w\ ICIPE, Univ Embu, CIRAD: "Evaluation of impact of #agroforestry 🌳🌽 & conventional farming systems on belowground #biodiversity 🐜🪱 & regulating services" 📅 19 Mar 2025 scholarships.icipe.org/calls/51

The Trump Administration is eliminating the Office of the Chief Scientist at NASA. The current head of that office is Dr. Katherine Calvin, an expert on climate change, global modeling, and international scientific negotiations. www.science.org/content/arti...

Visit of our Cirad-University of Zimbabwe rainfall exclusion experiment with the French Ambassador and the RAIZ project steering committee, followed by field days in Murewa and Mutoko 🇿🇼 gathering hundreds of farmers #agroecology #climatechange #climatesmartagriculture #intercropping #legumes

A must-read !

#JustOut #openaccess 2nd PhD paper of R. Nyawasha 👏 ! A nice study about SOC stocks in a smallholder communal area of 🇿🇼 and how they are impacted by land use, soil type & historical management. Also includes a comparison w\ predicted SOC stocks from AfSIS @cirad.bsky.social doi.org/10.1016/j.ca...

The environmental cost of war is part of the human cost of war. 🇵🇸 🌍 e360.yale.edu/features/gaz...

Mapped: How extreme weather is destroying crops around the world lnkd.in/eR_cfand

Drop everything and read this brilliant @charlescmann.bsky.social essay on how modern agriculture feeds the world. Fertilizer, irrigation, and genetics! www.thenewatlantis.com/publications...

In Nature Climate Change, we show that a year above 1.5 °C signals that Earth is most probably within the 20-year period that will reach the Paris Agreement limit. @natclimchange.bsky.social

🚨 #JustPublished "Farm resilience to climatic risk. A review" with @cirad.bsky.social and @w-u-r.bsky.social More comprehensive assessments are needed to measure farm #resilience, especially for #smallholders. For this, we are proposing 6 guidelines #OpenAccess 👉 t.co/djDpVPtbsC

Cropped fields aren’t degraded nature—they’re designed to feed us, which requires trade-offs. Using natural ecosystems as a benchmark for soil health or regenerative ag is misleading. My latest shows why: csanr.wsu.edu/soil-organic...

Postdoc opportunity for someone with good data wrangling and analysis skills to explore the effects of agroecological farming practices using long-term experiment datasets 🌾🌻🌦️🌐📈🤎💚🧪 At SLU in Uppsala, Sweden, with Riccardo Bommarco, Giulia Vico, and me: www.slu.se/en/about-slu...