Cercetări privind valorificarea ca îngrăşământ a deşeurilor din industria vinicolă şi cea de producere a alcoolului etilic
2016
Plămădeală, V. (Institute of Pedology, Agrochemistry and Soil Protection "Nicolae Dimo", Chisinau (Republic of Moldova) | Siuris, A. | Rusu, A. | Bulat, L.
The article presents the results of field testing of three waste types: wine yeast, vinasse and grainmash derived from grape processing and ethyl alcohol production. The results proved that the administration oftwo doses of wine yeast (13 and 26 t/ha), of vinasse (300 and 600 m3/ha) and of grain mash (50 and 100 m3/ha)contributed to the significant increase of the organic matter content, mobile phosphorus and changeable potassiumin the arable soil layer. The use of wine yeast annually ensured a significant increase of grape yields by 1.2 – 2.2t/ha or by 12 – 22 % more than those obtained from the unfertilized control variant, where only 10.2 t/ha wereharvested. The vinasse had a significant impact on the grapevines productivity as well. The grape harvestconstituted on average 0.9 – 1.0 t/ha or by 9 – 10 % more than in the control variant. The grain mash contributedto obtain an average increase of the yield of 993-1292 kg/ha of grain units or by 45 -58 % more compared to theunfertilized variant.
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