排放葡萄酒酿造废渣对土壤的负面影响。

Negative effect of discharging vinification lees on soils.

作者信息

Moldes Ana B, Vázquez Manuel, Domínguez José M, Díaz-Fierros Francisco, Barral María T

机构信息

Departamento de Edafología y Química Agrícola, Facultad de Farmacia, Universidad de Santiago de Compostela, Spain.

出版信息

Bioresour Technol. 2008 Sep;99(13):5991-6. doi: 10.1016/j.biortech.2007.10.004. Epub 2007 Nov 19.

DOI:10.1016/j.biortech.2007.10.004

PMID:18023342

Abstract

In this work, vinification lees from Galicia (Spain) were chemically analysed and compared with the composition of vinification lees from other regions and residues. Moreover, vinification lees were submitted to biological test employing cress, spring barley and ryegrass seeds. The evaluated vinification lees were rich in nutrients that are essential for plants, like P (2,520 mg kg(-1)), K (36,738 mg kg(-1)) and Mg (462 mg kg(-1)), but have low pH (3.9) and high C/N ratio. However, when vinification lees were submitted to biological tests, no germination was observed for garden cress and ryegrass seeds and almost no germination for spring barley seeds, showing the negative effect of discharging lees on crop fields.

摘要

在这项研究中，对来自西班牙加利西亚的酿酒废渣进行了化学分析，并与其他地区的酿酒废渣及残渣的成分进行了比较。此外，还利用水芹、春大麦和黑麦草种子对酿酒废渣进行了生物测试。所评估的酿酒废渣富含植物必需的营养元素，如磷（2520毫克/千克）、钾（36738毫克/千克）和镁（462毫克/千克），但pH值较低（3.9）且碳氮比高。然而，当对酿酒废渣进行生物测试时，水芹和黑麦草种子未观察到发芽，春大麦种子几乎未发芽，这表明将废渣排放到农田会产生负面影响。