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Master Thesis

Impacts de différentes modalités d'enherbement sur la vigueur et le fonctionnement de la vigne en Champagne

Abstract : Three grass covering treatments are tested among the Veuve Clicquot Vineyard in order to assess their effects on the vine performance according three vigour levels. The control treatment is a permanent grass cover in all the inter-rows. The second treatment is a permanent grass covered inter-row alternate with an inter-row mechanically weeded until the grapes start ripen, the third is a permanent grass covered inter-row alternate with an inter-row mechanically weeded until May/June. All the rows are mechanically weeded. Grass- covered inter-rows are mowed. Three vigour levels were defined based on wood-biomass and cane diameter maps. These data derived from Physiocap 2014 measurements. The three treatments were tested among three Pinots, two Meuniers and one Chardonnays parcels, showing the three vigour levels within them. Treatment effects were assessed through several criteria linked with nutritional balance of the vines and with yield and grape quality. Any significant result was observed for with first year of experiment. A trend seems to appear with the control treatment, that shows lower nitrogen concentrations, a more pronounced nutritional unbalance, a lower yield, a lower alcoholic potential but a healthier harvest than the two other treatments. Differences between treatments seem to subside with the higher vigour level. Any difference was observed between the two other treatments.
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Master Thesis
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https://dumas.ccsd.cnrs.fr/dumas-01235628
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Submitted on : Monday, November 30, 2015 - 2:03:57 PM
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Alice Couderc. Impacts de différentes modalités d'enherbement sur la vigueur et le fonctionnement de la vigne en Champagne. Sciences agricoles. 2015. ⟨dumas-01235628⟩

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