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Master Thesis

Vers plus de durabilité en maraîchage bio : évaluation d'un système d'abri innovant

Abstract : Market gardening systems under shelter are linked to intense crop rotation, based on the Solanaceae and Curcubitaceae alternation with a continuous soil occupation. They face health problems that limit their long-term sustainability. One of the sustainability levers consists in integrating intermediate crops into the succession. This integration is possible thanks to an innovation: the mobile hoop house. It is tested at the Auray experimental station between 2018 and 2020. With an objective of de-intensifying, diversifying and extending the production periods, the crop rotation has been adapted. It includes an eighth crop of zucchini and intermediate crops on uncultivated areas. This innovative system is compared to a reference system, conducted under a classic hoop house. Yields, nitrogen inputs and work time were recorded for both systems. Savings in nitrogen inputs (-49%) were achieved in the innovative system. With the pedoclimatic conditions of the trial, yields are variable in both systems. The two tomato crops yields were lower, resulting in a significant loss of benefit. Work times are 10% higher for this system, due to the tunnel shift and the operations related to the intermediate crops. The economic balance revealed a € 2895 difference between the two systems, to the disadvantage of the innovative system. The results obtained suggest that environmental sustainability is enhanced in the innovative system despite an economic loss. Then, these results could be integrated to a multi-criteria sustainability assessment.
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Master Thesis
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https://dumas.ccsd.cnrs.fr/dumas-03040031
Contributor : Agrocampus Ouest <>
Submitted on : Friday, December 4, 2020 - 10:23:33 AM
Last modification on : Sunday, February 21, 2021 - 3:22:30 AM
Long-term archiving on: : Friday, March 5, 2021 - 6:29:17 PM

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Maureen Gicquel. Vers plus de durabilité en maraîchage bio : évaluation d'un système d'abri innovant. Sciences du Vivant [q-bio]. 2020. ⟨dumas-03040031⟩

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