Bioenergetic efficiency of growing miscanthus with sewage sediment

Abstract Cultivation of energy crops becomes relevant in areas with a high climatic potential for biomass accumulation. Many studies have established the effectiveness of applying sewage sludge on various types of soil, including under miscanthus and increasing biomass collection of various doses of its application. Field experiments were conducted in the West of our country, namely in the territory of the Ivano-Frankivsk Region, Tsenzhiv Yamnytska united territorial community. Application of growing fertilizers based on compost ( SS – 40 t/ha + N 10 P 14 K 58 and Compost ( SS + straw (3 : 1)) – 20 t/ha + N 50 P 16 K 67 ) ensures the highest yield of dry biomass of miscanthus (29.8 and 27.3 t/ha), as well as the output of gross energy (547 – 578 GJ/ha), which led to an increase in the energy efficiency coefficient from 3.3 to 4.1. Such a relationship describes the regression equation of the linear regression with the coefficients of determination ( R 2 = 0.73).