Productivity of topinambur on podzolic degradated soils

Purpose of research. To determine rational fertilization systems for growing topinambur on low fertility soil to increase the productivity plant community in order strengthen feedstock base production bioethanol. Methods. Field, accounting, laboratory, and analytical. Results. It was established that can be successfully grown degraded eroded podzolic soil. A organo-mineral fertilizer system with introduction 15–20 t/ha manure N40–65P40–53K40–70 as well microbiological formulation Filazonit MC (10 L/ha) improves green weight Jerusalem artichoke significantly compared without fertilizer. The total yield dry biomass increases by 7.3–7.5 or 100–102%. However, process using plantations 3–4 years, is reduced. Therefore, re-fertilization required. Fertilizer exert unequal influence formation nutrient regime characterized a certain ameliorative effect helps reduce acidity environment, reducing hydrolytic 0.23–0.42 mmol/100 g soil, 14–26%. As proportion organic fertilizers increases, index decreases. Fertilizing causes an content available basic mineral nutrients Conclusions. Organo-mineral has significant advantages over ones, because best agrochemical indices highest mass tubers, which leads harvest. During fertilization, more intensively than tuber crop. use smaller quantities aboveground biomass, increased rates complete (ΣNPK = 390 kg/ha active substance) provide tubers matter yield. An additional factor increasing biological artichoke’s biologically agents, such Filazonitu MC, contributes insignificantly improve through activation processes growth processes.