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Open AccessArticle

Crop Diversification in Viticulture with Aromatic Plants: Effects of Intercropping on Grapevine Productivity in a Steep-Slope Vineyard in the Mosel Area, Germany

1
Department of Soil Science, Trier University, 54296 Trier, Germany
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Department of Physical Geography, Trier University, 54296 Trier, Germany
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Winery Dr. Frey, 54441 Kanzem, Germany
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Department of Environmental Systems Science, ETH Zürich, 8092 Zürich, Switzerland
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Department of Biogeography, Trier University, 54296 Trier, Germany
*
Author to whom correspondence should be addressed.
Academic Editors: Claudia Di Bene, Rosa Francaviglia, Roberta Farina, Jorge Álvaro-Fuentes and Raúl Zornoza
Agriculture 2021, 11(2), 95; https://doi.org/10.3390/agriculture11020095
Received: 17 December 2020 / Revised: 15 January 2021 / Accepted: 20 January 2021 / Published: 23 January 2021
(This article belongs to the Special Issue Agricultural Diversification)
The effects of intercropping grapevine with aromatic plants are investigated using a multi-disciplinary approach. Selected results are presented that address the extent to which crop diversification by intercropping impacts grapevine yield and must quality, as well as soil water and mineral nutrients (NO3-N, NH4-N, plant-available K and P). The experimental field was a commercial steep-slope vineyard with shallow soils characterized by a high presence of coarse rock fragments in the Mosel area of Germany. The field experiment was set up as randomized block design. Rows were either cultivated with Riesling (Vitis vinifera L.) as a monocrop or intercropped with Origanum vulgare or Thymus vulgaris. Regarding soil moisture and nutrient levels, the topsoil (0–0.1 m) was more affected by intercropping than the subsoil (0.1–0.3 m). Gravimetric moisture was consistently lower in the intercropped topsoil. While NO3-N was almost unaffected by crop diversification, NH4-N, K, and P were uniformly reduced in topsoil. Significant differences in grapevine yield and must quality were dominantly attributable to climate variables, rather than to the treatments. Yield stabilization due to intercropping with thyme and oregano seems possible with sufficient rainfall or by irrigation. The long-term effects of intercropping on grapevine growth need further monitoring. View Full-Text
Keywords: perennial cropping systems; grape production; medicinal and aromatic plants; grapevine yield; must quality; experimental design perennial cropping systems; grape production; medicinal and aromatic plants; grapevine yield; must quality; experimental design
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MDPI and ACS Style

Dittrich, F.; Iserloh, T.; Treseler, C.-H.; Hüppi, R.; Ogan, S.; Seeger, M.; Thiele-Bruhn, S. Crop Diversification in Viticulture with Aromatic Plants: Effects of Intercropping on Grapevine Productivity in a Steep-Slope Vineyard in the Mosel Area, Germany. Agriculture 2021, 11, 95. https://doi.org/10.3390/agriculture11020095

AMA Style

Dittrich F, Iserloh T, Treseler C-H, Hüppi R, Ogan S, Seeger M, Thiele-Bruhn S. Crop Diversification in Viticulture with Aromatic Plants: Effects of Intercropping on Grapevine Productivity in a Steep-Slope Vineyard in the Mosel Area, Germany. Agriculture. 2021; 11(2):95. https://doi.org/10.3390/agriculture11020095

Chicago/Turabian Style

Dittrich, Felix; Iserloh, Thomas; Treseler, Cord-Henrich; Hüppi, Roman; Ogan, Sophie; Seeger, Manuel; Thiele-Bruhn, Sören. 2021. "Crop Diversification in Viticulture with Aromatic Plants: Effects of Intercropping on Grapevine Productivity in a Steep-Slope Vineyard in the Mosel Area, Germany" Agriculture 11, no. 2: 95. https://doi.org/10.3390/agriculture11020095

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