ВЛИЯНИЕ МИНЕРАЛЬНОГО УДОБРЕНИЯ И ПОДВОЕВ НА РОСТ И РАЗВИТИЕ САЖЕНЦЕВ ВИШНИ СОРТА ТРОИЦКАЯ

Abstract

The growth and development of fruit crop seedlings depend on various factors that allow increasing the growth and the root collar diameter. The parameters are crucial for obtaining high-quality products. The application of mineral fertilisers allows the plant to fully feed on trace elements throughout the growing season, in conditions when the plant has a limited space for growth but experiences no deficiency in nutrients. Using rootstocks in growing stone fruit trees is critical for the development of seedlings and their resistance to adverse environmental conditions. The variety and rootstock response to mineral fertilisers is another important criterion for obtaining strong cherry seedlings [12, 14]. The Urea mineral fertiliser enhanced the growth of seedlings 1.5-fold on the rootstock of the Ashinskaya and Maak cherry varieties. The fertilisers also increased the root collar diameter: RCD enlarged 1.4-fold on the rootstocks of varieties Ashinskaya and Maaka. The Ashinskaya cherry tree variety has a high regenerative capacity, winter hardiness, rapid growth, high field resistance to pests and diseases [11]. The Maaka cherry tree variety has a monogenic resistance to coccomycosis, high winter hardiness, drought resistance, a high rooting rate of green cuttings and produces no overgrowth. The properties make variety Maaka valuable for rootstock use. The Troitskaya cherry tree variety has an average early ripening period, a high yield, annual fruiting, resistance to pests and diseases, it is a donor of large fruit. The experiment identified the best variant that involved applying the Urea mineral fertiliser at a dose of 5 g / l and, using the Maaka cherry tree variety as a rootstock. The variant demonstrated the highest values for the height of seedlings (68.6 cm) and the highest RCD values (6.9 mm) on average for three years