Cultivation methods of dwarfing cherry seedlings

Cherry trees are tall and are not suitable for growing in greenhouses; natural production takes 5 to 6 years to bear fruit, and it takes 10 years to enter the high yield period, with a long investment return period and high management costs. After many years of exploration, fruit experts in China have developed a cherry variety grafted with cherry as rootstock and FL-80 plum as interstock, which has the advantages of early fruiting, high yield, stable yield, disease resistance and dwarfing tree body, which provides a favorable basis for protected cultivation and container cultivation of cherry. Rootstock selection: cherry (also known as wild cherry) root system is the preferred root system, because it has the advantages of resistance to underground pests biting, strong cold resistance, strong drought resistance, strong acid and alkali resistance, resistance to fertilizer damage, fertilizer resistance, developed root system, etc. The root systems of wild apricot and wild peach can also be adopted. The two root systems have poor waterlogging tolerance and are only suitable for cultivation in waterlogged plots. The above three root systems are better than Shandong sakura, Isatis indigotica, Benxi sakura and Kote, which completely solves the problem of serious dead trees caused by poor root systems. Seedling grafting: seed of cherry is sown in spring. In August to September of the same year, cherry is used as the base stock, and the scion of plums of the same year with the same thickness as the base stock is grafted at 2~4 cm on the ground of the base stock. The best effect is obtained by T-shaped bud grafting. Every 6 to 7 months, i.e. March to April of the second year, the rootstock is cut at 0.5 to 1 cm above the joint part between the plum bud and the basal stock, and the binding rope of the bud is removed, and then the new sprout of the basal stock is wiped off at any time. From June to July of the same year, cherry scions with the same thickness as the interstock were grafted on the interstock by bud grafting with plum buds as the interstock. The bud should be 2~3 cm away from the upper end of the joint between the intermediate stock and the base stock, and retain a certain length of the intermediate stock, cut off the rest. When the cherry bud grows to 14~16 cm, cut the intermediate stock at the position 0.5~1.5 cm away from the upper end of the joint of the cherry bud and the intermediate stock, and untie the binding rope of the cherry bud. At this time, the grafting of the whole dwarf cherry seedlings is completed, and then fertilization and pesticide application are carried out until the nursery is out in early November.