Negative effect of discharging vinification lees on soils.
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.
Moldes
Ana B
AB
Departamento de Edafología y Química Agrícola, Facultad de Farmacia, Universidad de Santiago de Compostela, Spain.
Vázquez
Manuel
M
Domínguez
José M
JM
Díaz-Fierros
Francisco
F
Barral
María T
MT
D002482:Cellulose / Q000032:analysis; D018556:Crops, Agricultural; D005511:Food Handling / Q000379:methods; D019649:Food Industry; D012989:Soil Pollutants; D013030:Spain; D027843:Vitis; D014920:Wine
D012989:Soil Pollutants; D002482:Cellulose; C027433:bagasse