Published in Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 2
Written by Andrei SIURIS, Tamara LEAH, Lilia BOAGHE
The Republic of Moldova generate approximately 100 thousand tons of wastes each year. These contains 28 thousand tons of organic matter, 180 tons of nitrogen, 82 tons of phosphorus and 257 tons of potassium. Fertilization with waste from the production of alcoholic beverages led to a significant increase in the content of organic matter by 0.17-0.41%, nitric nitrogen - 0.45-5.80 mg/kg, mobile phosphorus - 0.22-0.68 mg/100 g and exchangeable potassium by 7-16 mg/100 g of soil. The application of solid wine yeasts ensures a significant increase in grape (Sauvignon) production on average over eight years of 1.4-2.4 t/ha. The average harvest increase when incorporating vinasse over eight years was 1.0-1.1 t/ha. The cereal mash applied to the soil determined the achievement of average increases in plant production over ten years of 1.100-1.700 kg/ha cereal units or 50-65% compared to the unfertilized variant. Based on the research, innovative technologies for the valorisation of waste from the production of alcoholic beverages as local organic fertilizers are developed.
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