CONTENT OF MACROU AND MICROUELEMENTS OF VIGNA, KIWANO, BITTER MELON, AND WAX GOURD IN GREENHOUSE CULTIVATION

Abstract

The content of macro- (C, N, P, S) and micro-elements, as well as some metals was analyzed in fruits, leaves, stems, and roots of vigna, kiwano, bitter melon, and wax gourd growing in the condition of unheated polyethylene-covered greenhouse in Novosibirsk (Russia). The revealed low concentration of sulfur and big atomic ratio of nitrogen to sulfur in plant phytomass is the result of insufficient macro-elements supply from fertilizers and peatsubstrates. The kiwano fruits are characterized by high concentration of K , Ca, Mg , Zn, Fe, Cu, and Ni and therefore is worth introducing this culture in Russia.

Keywords

• vigna
• kiwano
• bitter melon
• wax gourd
• macroonutrients
• micronutrients
• phytomass