The effective way to dwarf fruit trees

First, selection of dwarf varieties with short-stem dwarf varieties with genetic characteristics is the main approach for dwarf dense planting. The main feature of these varieties is grafted on the Qiaohua anvil, which still shows short dwarf trees, full and compact canopy, short and thick branches, large leaves, high germination rate, weak branching ability, good ventilation and light transmission, and early results. Second, the use of dwarf rootstock dwarfing rootstock is another major approach to dwarf close planting. Dwarfing anvil has obvious dwarfing effect on grafted varieties, and it is currently used in apple production. For example, the M series and MM series imported from the United Kingdom, the P series imported from Poland, etc., these rootstocks can be propagated by methods such as layering and cutting. Third, the main girdling and peeling skin in June, the main stem, the main branch girdling or ring peeling skin, have control of tree growth, increase nutrient accumulation, promote flower bud formation effect. At the same time, it also weakened the growth of the root system, thereby achieving the purpose of tree dwarfing and early results. Fourth, dwarf pruning Winter pruning, the need to cultivate branches of the branches, leaving the base of 1 to 3 axillary bud weight short. During the summer cut, two to four leaves of the base of the new shoot were cut short to promote the formation of a short side shoot. If long branches are found, they can be repeated and shortened until a short branch is obtained, thus making the tree dwarf. Fifth, the use of plant growth regulators growth regulators can inhibit tree growth, there is a significant dwarfing effect, is a new approach to dwarf close planting cultivation. The currently used regulators include PP333, B9, ethylene, chemocyclin, and orthotropin. By using growth regulators, tree growth can be significantly controlled, short stems can be promoted, and fruit set-up rates can be improved. China Agricultural Network Editor

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