2024-03-28T15:06:27Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/891572016-02-17T22:32:20Zcom_10261_75com_10261_6col_10261_328
DIGITAL.CSIC
author
Aragüés Lafarga, Ramón
author
Medina Pueyo, Eva Teresa
author
Clavería Laborda, Ignacio
author
Martínez-Cob, Antonio
author
Faci González, José María
2014-01-09T08:31:21Z
2014-01-09T08:31:21Z
2014-03
Aragüés R, Medina ET, Clavería I, Martínez-Cob A, Faci JM. Regulated deficit irrigation, soil salinization and soil sodification in a table grape vineyard drip-irrigated with moderately saline waters. Agricultural Water Management 134: 84-93 (2014)
0378-3774
http://hdl.handle.net/10261/89157
10.1016/j.agwat.2013.11.019
Irrigation with moderately saline waters may provoke soil salinization and sodification. The objectives of this three-year study were (1) to quantify these processes in two seedless table grapevines (Vitis vinifera cvs. Autumn Royal and Crimson) subject to a full irrigation and two regulated deficit irrigations (RDI, irrigated at 80% and 60% of net irrigation requirements from post-veraison till harvest) with 1.7 dS m−1 electrical conductivity irrigation waters, and (2) to assess the impact of soil salinization on grapevine's response. Soil samples were taken three times along each irrigation season and soil solution samples were extracted weekly by suction cups. Soil saturation extract electrical conductivity (ECe) and sodium adsorption ratio (SARe) were high in Autumn Royal (4.4 dS m−1 and 6.1 (mmol l−1)0.5) and very high in Crimson (7.0 dS m−1 and 8.6 (mmol l−1)0.5) due to relatively low leaching fractions (LF) (0.20 in Autumn Royal and 0.13 in Crimson). Soil solution salinity and sodicity were generally higher in the more severe RDI than in the full irrigation treatment. Soil salinity and sodicity generally increased along the irrigation seasons and decreased along the non-irrigation seasons. Salt accumulation or leaching and LF were significantly correlated, so that LF estimates could anticipate the required irrigation depths for soil salinity control. Grapevine yield declined with increases in soil salinity. Leaf Na concentrations were very low (<0.1%), but leaf Cl concentrations were higher and the maximum value of 0.61% measured in the more severe Crimson RDI treatment was within the interval reported as toxic in grapevine. Despite the water saving benefits of drip irrigation in combination with deficit irrigation strategies, its implementation in low-precipitation semiarid areas must be cautiously assessed and monitored because soil salinization and sodification may threaten the sustainability and profitability of these grapevine orchards irrigated with moderately saline waters.
eng
openAccess
deficit irrigation
salinity
sodicity
Vitis vinifera
leaching fraction
Regulated deficit irrigation, soil salinization and soil sodification in a table grape vineyard drip-irrigated with moderately saline waters
artículo
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URL
https://digital.csic.es/bitstream/10261/89157/1/AraguesR_AgricWatManag_2014.pdf
File
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application/pdf
AraguesR_AgricWatManag_2014.pdf
URL
https://digital.csic.es/bitstream/10261/89157/4/AraguesR_AgricWatManag_2014.pdf.txt
File
MD5
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AraguesR_AgricWatManag_2014.pdf.txt