Article

Posibilidades de aplicación de vinazas en suelos rojos de La Mancha (España)

Pilquen - Sección Agronomía, ISSN 1851-2852, Nº. 8, 2006-2007
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    ABSTRACT: Background, aim, and scopeUsing wastewaters from wine production that are often discharged directly into soil, with previous treatment, we carried out an experiment to identify the impact over time, specifically to identify the benefits and risks of its application. Materials and methodsExperiments were carried out using approximately 200g of samples of agricultural soils which were amended with increased amounts of vinasse: 1–5–10–20–40–70ml. The doses used were not arbitrary but similar to the usual one amended. Soil electric conductivity was determined in distilled water with a glass electrode (soil to H2O ratio 1:5). Clay identification of soil samples are by X-ray diffraction. ResultsThe pH decreased slightly and salinity increased, possibly leading to changes in crop productivity. The increase in salinity reflects the concentration of dissolved salts in the vinasse. Significant changes were observed in the clay minerals after amendment with the vinasse. ConclusionsOur study indicates that, under experimental incubation, the application of increasing doses of wine vinasse for increasingly long periods can affect certain chemical properties. The results show that application of winery wastewaters to soil results in significant increases of electrical conductivity, reaching levels that can be detrimental to crop growth. The decrease in pH values is somehow beneficial, and finally there is a small increase in the chemical weathering of clay minerals
    Journal of Soils and Sediments 9(2):121-128. · 1.97 Impact Factor

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