Opportunities and risks of double cropping in southwestern France with a focus on soybean and sunflower crops

Growing a second food, fodder or bioenergy crop during the fallow period commonly refers to sequential double cropping relay practices, as function of sowing date (following within primary crop, respectively). Such practice may generate an additional income while supplying support and regulation services. As such, it could be referred form ecologically intensive agriculture but also opportunity offered by climate change. The decision-making process in adoption relies on many factors related soil conditions, profit expectation risk perception. CASDAR project “3C2A: Three crops two years” (2019–2023) strived create references for South-West France, which encompasses regions Nouvelle-Aquitaine Occitanie. focused mainly grain raised interest use oil-protein such soybean ( Glycine max (L.) Merrill) sunflower Helianthus annuus L.) practice. preliminary contribution 3C2A project, this paper aims at illustrating potential France through qualitative analysis farmers’ perceptions about risks opportunities double-cropping completed 4-years on-farm evaluation agronomic economic performances (110 fields).