2020
DOI: 10.1051/cagri/2020003
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L’adoption du semis direct sous couvert végétal : transition douce ou rupture ?

Abstract: Le semis direct sous couvert repose sur l’application simultanée et continue de trois principes : la réduction quasi-totale du travail du sol, une couverture organique des sols et une rotation diversifiée. Ce système agricole adopté en France à partir des années 2000 sous l’impulsion de groupes d’agriculteurs est en extension. Pour les agriculteurs, adopter un nouveau système agricole revient à modifier, de manière plus ou moins importante, leurs pratiques. Concernant le semis direct sous couvert végétal, peu … Show more

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“…Nevertheless, the proportions of hemicryptophytes and chamaephytes were higher in the age group 1. This observation could be the result of the progressive soil tillage reduction chosen by farmers before adopting CA (Derrouch et al, 2020b and >10 appeared to be less variable in their proportions of eudicotyledons/graminoids and composed of a higher proportion of graminoids. This trend has already been observed in systems with reduced tillage (Murphy et al, 2006) or in CA (Trichard et al, 2013) and may result from a smaller range of chemical solutions that can be used on grasses on wheat crop.…”
Section: Discussionmentioning
confidence: 94%
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“…Nevertheless, the proportions of hemicryptophytes and chamaephytes were higher in the age group 1. This observation could be the result of the progressive soil tillage reduction chosen by farmers before adopting CA (Derrouch et al, 2020b and >10 appeared to be less variable in their proportions of eudicotyledons/graminoids and composed of a higher proportion of graminoids. This trend has already been observed in systems with reduced tillage (Murphy et al, 2006) or in CA (Trichard et al, 2013) and may result from a smaller range of chemical solutions that can be used on grasses on wheat crop.…”
Section: Discussionmentioning
confidence: 94%
“…Nevertheless, the proportions of hemicryptophytes and chamaephytes were higher in the age group 1. This observation could be the result of the progressive soil tillage reduction chosen by farmers before adopting CA (Derrouch et al, 2020b). Age groups 2–5 and 6–10 appeared as an intermediate state between the other groups, with higher proportions of geophytes and phanerophytes than age group 1 and higher proportions of therophytes, hemicryptophytes and chamaephytes than age group >10.…”
Section: Discussionmentioning
confidence: 99%
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