2019/06/05 by Bouchié, Jean-Michel, Baranger, Émilie
#0 #Agronomic levers #Couverts végétaux #Direct sowing #IFT #Leviers agronomiques #Plant covered #Semis direct #System of culture #Système de culture
paper · doi:10.15454/i8tdg4
The experience systems project in Berry crops is experienced in staging area, region in dominant Winter Canola-wheat-barley rotation. Compared to this regional reference system, 2 other systems are cocreated by Arvalis and land Inovia institutes, and the co-operative Group, Axéréal: a first IFT reduction system by using different agronomic sunrises, the combining. The other energy reduction system more system at odds with the current lines is based there search for energy saving with direct and covered planting plants in inter-culture. Multicriteria analysis of the 5 years of experimentation with Systerre®, it is clear that the reference C-B-O system consumes more phytos that originally, related in particular to lower efficiency products. On the IFT reduction system, gross and net margins are close to the reference despite lower production by 10%. The time of work and monitoring increased, the mastery of the pathogens is stretched with a tendency to the degradation of the cleanliness of plots. On the energy reduction system, working time is reduced by 30%, the improved fertility, gross margins and net close to the reference, but this system is delicate. Phytos consumption turns out strong in the end (25% of IFT and more), in particular the use of Glyphosate. Of work remain to continue on the energy reduction system to lower the use of the phyto and secure control of weeds with the addition of new levers on direct seeding: replace glyphosate and lower consumption of phyto brings to rebuild the system.