First, the choice and origin of seedlings
First, the choice of seedlings: The general principle is to choose a robust, no pest damage, a good tree shape, plump crown, complete root seedlings. 1. Large-sized saplings: generally refers to the tree more than 10 years old or the trunk thicker than 10 centimeters, it is best after 1-2 times the root or transplanted, to fully consider the life of the tree species, such as peach, it The natural life span is about 30 years. When you buy a tree that is 10 years old, it will soon become old and die after transplanting. It is best to buy seedlings less than 3 years old. Only long-lived tree species such as ginkgo, crape myrtle and jellyfish can buy big trees and old trees. Large-sized trees must carry earthballs. 2. Seedlings born in 1-2 years: (1) Stout stalks, good degree of lignification, and a sufficient number of full shoots within the plastic band; (2) Purchase of fruit trees, selection of good varieties, and full consideration of scion Affinity with rootstocks; (3), branches full, without water, no mechanical damage, shiny surface; (4), the root system is developed, there are thick, long enough more than three lateral roots. Second, the seedlings of the luck: 1, raising: (1), with soil ball: with soil ball lifting by the following factors, first, the seedlings are in the growth phase; and seedlings larger specifications; third is the Tree species (or varieties) have poor root regeneration. The size of the earth ball is determined according to the size of the tree. Generally, the diameter of the soil ball is not less than 5 times the diameter of the trunk. (2) Bare root seedlings: Only the young trees at dormancy period are used (Beijing area is generally mid-November to the next year 3 (Mid mid-month); 2, Transportation: Transportation should pay attention to not damage the big branch, do not damage the epidermis, covered with tarpaulin, to prevent the wind and sunlight caused by dry branches and leaves, when the conditions are best with vans. Xeroform Gauze,Xeroform Dressing,Xeroform Bandage,Xeroform Gauze Walgreens Roosin Medical Co.,Ltd , https://www.roosinmedical.com