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Master Thesis

Évaluation d'un tunnel bioclimatique en culture de fraise hors-sol

Abstract : The aim of the experiment is to compare the climate and the production of strawberry in soilles cultivation in a double-walled bioclimatic tunnel (TBC) and in two reference tunnels (single-walled tunnel (TSP) and unheated double-walled tunnel (TDP)). The TBC is equipped with water storage tanks that store solar energy during the day and release it at night. The objective of the test is to see if the TBC is more agronomically efficient than the reference tunnels but also more energy competitive compared to heated greenhouses. The bioclimatic system allowed an early harvest and a quicker return to harvest (March 4), a few days before the other greenhouses. Over the whole study period, the TBC presented day and evening temperatures 4-6°C higher on average compared to the reference tunnels. Critical overheating periods (above 26°C) for the strawberry plant were more numerous in the TBC. The high DH of the TBC helped to limit conditions conducive to pathogen development (condensation). Thus, the periods at risk of condensation are less important in the TBC than in the TSP. The climatic conditions of the TBC were penalizing on the final yield with many fruit wastes. The TBC has 25 to 30% less commercial yield depending on the variety. The climatic conditions of the year with not very cold temperatures and a rather mild spring were favourable for the TSP
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Master Thesis
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https://dumas.ccsd.cnrs.fr/dumas-03118442
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Submitted on : Friday, January 22, 2021 - 11:25:45 AM
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Jean-Alcyon Nteppe-Nyemb. Évaluation d'un tunnel bioclimatique en culture de fraise hors-sol. Sciences du Vivant [q-bio]. 2020. ⟨dumas-03118442⟩

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