The use of prolonged fertilizers for vegetative reproduction of Prunus salicina in the conditions of the Krasnoyarsk forest-steppe

Krasnoyarsk state agrarian university, 660049 Krasnoyarsk, Russia

^* Corresponding author: mistratova@mail.ru

Abstract

The article examines the influence of Osmocote Exact Standard fertilizers on the biometric parameters of Chinese plum (Prunus salicina) saplings of varieties Pyramidalnaya and Altayskaya Jubileinaya during vegetative propagation (by the method of winter grafting) in the Krasnoyarsk forest-steppe conditions. The use of prolonged fertilizers when growing plum planting material has a positive effect on the development of biometric parameters of the aboveground and underground phytomass of plants: the average number of shoots in the variant with longacting fertilizers was 2.7-3.0 pcs. An increase in the average length of shoots was recorded in the variants using Osmocote - 15.9-18.1 cm, these indicators are 2.9-8.7 cm higher than the control variants. Application of prolonged fertilizers had a favorable effect on the growth and development of the root system of plum seedlings: average the number of roots of the 1st branching order was 9.7-12.7 pcs, the average length of the roots of the 1st branching order was 9.4-10.3 pcs.