The Effect of Fertilization on the Structure of the Aboveground Biomass of Several Cultivars of Jerusalem Artichoke (Helianthus tuberosus L.)

JA (Jerusalem artichoke) cultivars react differently to mineral fertilization. Hence, the aim of this study was assess effect fertilization on yield and structure species in terms its aboveground biomass. The research based a field experiment carried out 2016–2018 Central Eastern Poland using randomized subblock method, split-split-plot-dependent system. factors first-order were Jerusalem artichoke (JA) (‘Albik’, ‘Rubik’ ‘Violet de Renes’), while second-order differentiated fertilizers (N0P0K0 as control object P43, K124, N100, P43K124, N50P43K124m N100P43K124, N150P43K124) converted their elemental forms compared with full dose manure. third-order nitrogen forms, including ammonium nitrate amide. biomass determined. tested did not differ significantly yield, but had different structures. use brought measurable effects form an increase ‘Albik’ cultivar responded best fertilization, highest being obtained after applying 150 kg N ha−1 against background constant phosphorus–potassium most favorably addition 50 amide Renes’ produced application 100 form, PK It found that it advantageous combination