Grafting cultivation domestication method for camphor trees suitable for growing in north

Abstract

The invention discloses a grafting cultivation domestication method for camphor trees suitable for growing in north, and relates to the technical field of tree seedling cultivation. The method includes the steps: 1) selecting a seedling nursery, uniformly spreading crushed straws into a land for growing field crops by the thickness of about 15cm, performing deep tillage and ridging, and ditching ridges for rooting by 15-20cm; 2) selecting scions and two-year or more than two-year lignified camphor branches, straight snipping two-leaf branches by 10-15cm, bundling the two-leaf branches into small bundles, dipping rooting agents and then immediately implanting the two-leaf branches into soil by the row spacing of 20-30cm; 3) immediately covering mulching films after implanting the two-leaf branches, timely performing broad irrigation and pouring water over the seedling nursery; 4) selecting and reserving high-quality sprouts to serve as scions after sprout; 5) taking wild glossy privets in areas to the north of the Huaihe River as tree stocks and performing grafting by a conventional method in April of the next year; 6) performing secondary grafting domestication, taking wild evergreen trees in the areas to the north of the Huaihe River as tree stocks, taking camphor tree seedlings survived by grafting in the next year as the scions, shearing twigs into 5-7cm sections and grafting the sections by the conventional method; 7) transplanting the camphor tree seedlings survived by secondary grafting in fixed holes. The method is simple, facilitated in practical operation, and has high rate of survival, and the cultivated camphor trees can normally grow in northern areas with good disease-resistant and drought-resistant ability.

Description

technical field [0001] The invention relates to the technical field of sapling cultivation, in particular to a method for grafting, cultivating and domesticating camphor trees suitable for growth in the north. Background technique [0002] Among the arbor species for urban landscaping in northern China, except for pine, cypress, and palm species, almost all of them are deciduous trees. As modern urban landscaping, the focus of urban landscaping has gradually shifted from the simple tree planting in the past to the city beautification. One of the important symbols of beautification is evergreen in all seasons. In view of this, the northward migration of evergreen tree species in the south is particularly important. Among the greening tree species in the south, camphor camphor is not only evergreen in all seasons, but also has a beautiful crown shape; it also grows fast, has dense branches and leaves, and its roots have little penetration and do little harm to buildings. Idea...

AI Technical Summary

Problems solved by technology

[0004] At present, camphor trees planted in the north have poor adaptability, low immunity, easy yellowing, and low survival rate. There are two reasons: low temperature and drought, and soil alkaline