INFLUENCE OF NUTRIENT SUPPLY ON TUBER AND SUGAR YIELD OF JERUSALEM ARTICHOKE (HELIANTHUS TUBEROSUS L.)

Nutrient supply experiments of Jerusalem artichoke were started in 2002 in Galambos Experimental Farm of Agricultural Sciences Institut of Faculty of Agricultural, Water and Environmental Management of Tessedik Samuel College with two varieties, 15 treatments in split-split plot experiment in four repetitions, on chernoziem meadow soil The height of plants, the number of main and side shoots, the green and dry matter yield as well as the tuber yield were analyzed monthly during the growing season. The aim of this presentation is to demonstrate the influence of nutrient supply on energetically utilizable components of the Jerusalem artichoke variety Tápiói korai, namely on the tuber yield, sugar content of tuber and sugar yield.