Dual Crop Coefficient Approach in <i>Vitis vinifera</i> L. cv. Loureiro
Vineyard irrigation management in temperate zones requires knowledge of the crop water requirements, especially in the context of climate change. The main objective of this work was to estimate the crop evapotranspiration (ET<sub>c</sub>) of <i>Vitis vinifera</i> cv. Loureiro...
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MDPI AG
2021-10-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/11/10/2062 |
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| author | Simão P. Silva M. Isabel Valín Susana Mendes Claúdio Araujo-Paredes Javier J. Cancela |
| author_facet | Simão P. Silva M. Isabel Valín Susana Mendes Claúdio Araujo-Paredes Javier J. Cancela |
| author_sort | Simão P. Silva |
| collection | DOAJ |
| description | Vineyard irrigation management in temperate zones requires knowledge of the crop water requirements, especially in the context of climate change. The main objective of this work was to estimate the crop evapotranspiration (ET<sub>c</sub>) of <i>Vitis vinifera</i> cv. Loureiro for local conditions, applying the dual crop coefficient approach. The study was carried out in a vineyard during two growing seasons (2019–2020). Three irrigation treatments, full irrigation (FI), deficit irrigation (DI), and rainfed (R), were considered. The ET<sub>c</sub> was estimated using the SIMDualKc model, which performs the soil water balance with the dual Kc approach. This balance was performed by calculating the basal coefficients for the grapevine (K<sub>cb crop</sub>) and the active soil ground cover (K<sub>cb gcover</sub>), which represent the transpiration component of ET<sub>c</sub> and the soil evaporation coefficient (K<sub>e</sub>). The model was calibrated and validated by comparing the simulated soil water content (SWC) with the soil water content data measured with frequency domain reflectometry (FDR). A suitable adjustment between the simulated and observed SWC was obtained for the 2019 R strategy when the model was calibrated. As for the vine crop, the best fit was obtained for K<sub>cb full ini</sub> = 0.33, K<sub>cb full mid</sub> = 0.684, and K<sub>cb full end</sub> = 0.54. In this sense, the irrigation schedule must adjust these coefficients to local conditions to achieve economically and environmentally sustainable production. |
| first_indexed | 2024-03-10T06:47:02Z |
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| language | English |
| last_indexed | 2024-03-10T06:47:02Z |
| publishDate | 2021-10-01 |
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| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-2e257ac293fb48b1b4951ff70fab43c22023-11-22T17:07:41ZengMDPI AGAgronomy2073-43952021-10-011110206210.3390/agronomy11102062Dual Crop Coefficient Approach in <i>Vitis vinifera</i> L. cv. LoureiroSimão P. Silva0M. Isabel Valín1Susana Mendes2Claúdio Araujo-Paredes3Javier J. Cancela4Centre for Research and Development in Agrifood Systems and Sustainability (CISAS), Escola Superior Agrária, Instituto Politécnico de Viana do Castelo, 4900-347 Viana do Castelo, PortugalCentre for Research and Development in Agrifood Systems and Sustainability (CISAS), Escola Superior Agrária, Instituto Politécnico de Viana do Castelo, 4900-347 Viana do Castelo, PortugalCentre for Research and Development in Agrifood Systems and Sustainability (CISAS), Escola Superior Agrária, Instituto Politécnico de Viana do Castelo, 4900-347 Viana do Castelo, PortugalResearch Unit in Materials, Energy and Environment for Sustainability (PROMETHEUS), Escola Superior Agrária, Instituto Politécnico de Viana do Castelo, 4900-347 Viana do Castelo, PortugalGI-1716 Projects and Planification, Agroforestry Engineering Department, Escuela Politécnica Superior de Ingeniería Lugo, University of Santiago de Compostela, 27002 Lugo, SpainVineyard irrigation management in temperate zones requires knowledge of the crop water requirements, especially in the context of climate change. The main objective of this work was to estimate the crop evapotranspiration (ET<sub>c</sub>) of <i>Vitis vinifera</i> cv. Loureiro for local conditions, applying the dual crop coefficient approach. The study was carried out in a vineyard during two growing seasons (2019–2020). Three irrigation treatments, full irrigation (FI), deficit irrigation (DI), and rainfed (R), were considered. The ET<sub>c</sub> was estimated using the SIMDualKc model, which performs the soil water balance with the dual Kc approach. This balance was performed by calculating the basal coefficients for the grapevine (K<sub>cb crop</sub>) and the active soil ground cover (K<sub>cb gcover</sub>), which represent the transpiration component of ET<sub>c</sub> and the soil evaporation coefficient (K<sub>e</sub>). The model was calibrated and validated by comparing the simulated soil water content (SWC) with the soil water content data measured with frequency domain reflectometry (FDR). A suitable adjustment between the simulated and observed SWC was obtained for the 2019 R strategy when the model was calibrated. As for the vine crop, the best fit was obtained for K<sub>cb full ini</sub> = 0.33, K<sub>cb full mid</sub> = 0.684, and K<sub>cb full end</sub> = 0.54. In this sense, the irrigation schedule must adjust these coefficients to local conditions to achieve economically and environmentally sustainable production.https://www.mdpi.com/2073-4395/11/10/2062active soil ground coversoil water contentsoil evaporationvine plants |
| spellingShingle | Simão P. Silva M. Isabel Valín Susana Mendes Claúdio Araujo-Paredes Javier J. Cancela Dual Crop Coefficient Approach in <i>Vitis vinifera</i> L. cv. Loureiro Agronomy active soil ground cover soil water content soil evaporation vine plants |
| title | Dual Crop Coefficient Approach in <i>Vitis vinifera</i> L. cv. Loureiro |
| title_full | Dual Crop Coefficient Approach in <i>Vitis vinifera</i> L. cv. Loureiro |
| title_fullStr | Dual Crop Coefficient Approach in <i>Vitis vinifera</i> L. cv. Loureiro |
| title_full_unstemmed | Dual Crop Coefficient Approach in <i>Vitis vinifera</i> L. cv. Loureiro |
| title_short | Dual Crop Coefficient Approach in <i>Vitis vinifera</i> L. cv. Loureiro |
| title_sort | dual crop coefficient approach in i vitis vinifera i l cv loureiro |
| topic | active soil ground cover soil water content soil evaporation vine plants |
| url | https://www.mdpi.com/2073-4395/11/10/2062 |
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