Ligno-cellulose quality and calorific value of green phytomass of Silphium perfoliatum L. cultivated on marginal soils under conditions of moderate continental climate of Central Europe

The aim of study was to determine ligno-cellulose quality and calorific value cup plant Silphium perfoliatum L., whereas impact nutrition, years sites on the were evaluated as main effects within a huge pilot field experiment. Two complete data sets acid-detergent fiber (ADF), lignin (ADL), crude cellulose (CE), hemicellulose (HEM), neutral-detergent (NDF) high heating (HHV) evaluated, primary one in terms content secondary yield. Average, minimal maximal ADF 43.73 – 31.32 48.94%, ADL 10.22 7.21 12.54%, CE 33.51 24.11 37.30%, HEM 4.17 2.33 5.75%, NDF 48.12 34.94 54.69% HHV 15.83 15.21 16.79 MJ/kg, respectively. Adequate values yield 5.461 1.021 20.827 t/ha, 1.274 0.235 5.115 4.187 0.786 15.112 0.569 0.055 2.447 6.041 1.139 23.273 t/ha 195.528 36.481 704.914 GJ/ha, Ligno-cellulose vary with environment management practices. In content, influence generally most significant (valid for ADF, ADL, NDF), or alternately (HEM HHV) it higher than medium nutrition. has been confirmed important factor (mainly because great increasing phytomass by utility year that perennial crop), followed nutrition then least impact, order valid each parameter.