The seedlings of the flat peach tree should be transplanted after 1-2 years of cultivation in the seedbed in order to raise urban greening seedlings with a dense root system and a certain stem shape as well as a robust, high-quality crown. Tree species are divided into fast-growing and slow-growing. Fast-growing species can produce seedlings with a diameter of 5-8 centimeters at breast height (dbh) after one transplant, and seedlings with a dbh of 10-15 centimeters at breast height (dbh) after two transplants. Slow-growing species can produce seedlings of 4-5 centimeters in diameter after two transplants, and seedlings of 8-10 centimeters in diameter after three transplants. The first time you transplant a peach tree seedling is when the seedling reaches a diameter of about 1 cm from the seedbed. Seedlings at this stage are still relatively short, using dense planting cultivation, the purpose is to promote the rapid growth of seedlings.
1, transplantation technology requirements:
(1) transplantation season in the spring, summer and fall as a supplement.
(2) seedbed specifications 1.2 -1.5 meters wide, walkway 50 centimeters, seedbed to take the north-south direction.
(3) transplanting row spacing using 80 × 80 cm row spacing, double row planting, showing zigzag staggered arrangement.
2, transplanting method requirements:
(1) seedlings from the digging, transport to planting the whole process should be closely organized to minimize the exposure time of the seedling root system.
(2) Transplanting should be graded seedlings, choose grade A or B seedlings, and strictly graded planting, can not be mixed.
(3) Seedlings are required to bring the appropriate amount of original bed soil, the main root should be cut before planting, leaving the length of the main root 15-20 centimeters, the total lateral root amplitude 15-20 centimeters.
(4) The leaves on the ground part of the transplanted seedlings should be appropriately cut less, but the terminal bud must be retained.
(5) The planting depth should be slightly deeper than the original seedbed growth.
(6) Irrigate immediately after planting, and water again two or three times every 3-7 days. The second transplantation, is in the seedlings chest diameter 4-5 cm stage. Although the seedlings have reached the basic requirements of urban greening seedlings, but the use of sparse planting to continue to cultivate, you can get a certain stem height and crown type of large size of high-quality greening seedlings.
1, transplantation technology requirements:
(1) transplantation season in spring, summer and fall as a supplement.
(2) seedbed specifications 1.2 -1.5 meters wide, walkway 50 centimeters, seedbed to take the north-south direction.
(3) transplanting plant spacing 110-120 × 80-90 cm, double row planting, showing zigzag staggered arrangement.
2, transplanted seedlings requirements:
(1) digging seedlings as far as possible with the soil ball, and pruning of injured roots, leaving the total lateral root amplitude of 30-40 cm.
(2) broadleaf species at this time for the intensity of pruning, uniformly reserved seedling height of 2.8 -3.0 meters.
(3) should be up digging out of the transplanted seedlings for grading, selection of class A seedlings or class B seedlings, strictly graded transplantation.
3, transplantation method requirements:
(1) the transplantation process should be closely organized plan, try to shorten the exposure time of the seedling root system, improve the survival rate of transplantation.
(2) Seedling planting depth should be deeper than the original growth of 5-10 centimeters, planting should not expose the root plate.
(3) transplanting work should be neat and tidy requirements, transplanted seedlings should be horizontal and vertical rows, neatly arranged, seedling beds clean and tidy.
(4)Immediately after planting, water the roots, and then water two or three times every 3-7 days. Slow-growing tree seedlings transplantation I. First transplantation. The first transplantation, after 1 year of seedling cultivation.
1, transplantation technology requirements:
(1) transplantation season is mainly in spring, summer and fall.
(2) seedbed specifications 1.2 -1.5 meters wide, walkway 50 centimeters, seedbed to take the north-south direction.
(3) transplanting plant spacing using 20-40 × 30 cm.
2, transplantation methods , except in the transplantation of seedlings should be appropriate to cut fewer leaves to reduce the intensity of transpiration, the other almost. The second and third transplants are basically the same as the transplantation of fast-growing tree species.