Natural Hovenia Dulcis Extract,Semen Hoveniae Extract,Raisin Tree Extract,Hovenia Dulcis Thunb Extract NANJING ZELANG MEDICAL TECHONOLOGY CO., LTD , https://www.hawfitness.com First, seedling seedlings: seedlings with roots and seedlings. Saplings cultivated in nurseries are called seedlings regardless of their age, before being sent out.
Seedling types: seedlings, vegetative propagation seedlings, transplanted seedlings, leave bed seedlings.
(a) Seedlings: Seedlings that are seeded with seeds. The seedlings that are cultivated with seeds by human means are called seedlings, and seedlings that grow naturally in the wild mother trees are called wild seedlings.
The seedlings have a well-developed root system, and the seedlings grow neatly, robustly and with good quality. The density of wild seedlings is uneven, differentiation is severe, and roots are underdeveloped.
(B) vegetative propagation seedlings: According to the seedlings used and specific methods can be divided into:
1, cuttings seedlings: seedlings or interception of tree branches cut seedlings bred seedlings.
2, buried seedlings: dry or seedlings with seedlings, the whole section buried in nursery nursery nursery.
3. Plugging seedlings: Use the roots of trees or seedlings to insert or bury nursery stocks.
4, root seedlings: also known as Liu root seedlings, is the use of underground root eruption of new seedlings bred seedlings.
5. Grafting seedlings: seedlings bred by grafting methods.
6. Beading seedlings: The seedlings that are not detached from the mother's body are buried in soil, or moistened in the air, and the seedlings that are cut off from the mother's body after rooting are formed.
7. Tissue culture seedlings: seedlings that are bred in nutrient fluids using maternal tissues or cells. Second, stay bed seedlings: Seedlings continued to grow in the nursery last year. III. Transplanting seedlings: The above-mentioned seedlings are transplanted when they are transplanted into nursery beds (lots) in nurseries.
After planting seedlings or vegetative propagation seedlings in the nursery, the nursery stocks are continuously transplanted. The transplanted seedlings can increase the area of ​​nutrition, improve the ventilation and light transmission conditions, promote the growth of lateral and fibrous roots, improve the quality, and improve the adaptability to site conditions for afforestation. The key to ensuring the survival of transplanted seedlings is to maintain the water balance in their bodies. In addition to keeping the soil moist, it is also necessary to protect the roots of seedlings and prevent water loss.
The main technical links are:
1 Preparation. Seedlings were graded before transplantation, uniform in size, partitioned and planted, conducive to tending management and reducing seedling differentiation.
2 transplant season. According to the local climate conditions and tree species characteristics. Generally spring is the time for transplanting each tree species, and the order of transplants for each tree species is determined based on germination sooner or later. In the warm and humid autumn season, autumn transplants are also feasible. Some evergreen tree species can also be transplanted during the rainy season.
3 transplant density. It depends on the growth rate of the seedlings, the developmental characteristics of the seedling crown and root system, the incubation period of the seedlings, and the equipment used. Generally, the row spacing of coniferous trees is smaller than that of broad-leaved trees, and the row spacing using mechanical management should be larger. 4 transplantation methods. Transplanter can be used for transplantation. Artificial transplantation is generally used hole planting and ditching method. For seedlings, there are two kinds of bare root transplantation and soil ball transplantation.
5 tending management. Immediately after transplanting, seedlings were watered 1 or 2 times, and the inverted seedlings were straightened and transplanted. Then according to the growth characteristics of seedlings irrigation, cultivator weeding, topdressing, pest control, pest control and other work. For large seedlings that are transplanted many times, they must be pruned. 6 seedlings out of the garden. To maintain the integrity of the roots. In production, the larger transplanted seedlings often determine the root length of the seedlings based on the diameter of the interground diameter. 4. Seedlings as seedlings have natural growth rules. In view of the role of greening and oxygen-generating air purification, local governments and countries have vigorously promoted green cities. Therefore, the demand for seedlings is very large, and it is necessary to use the market for circulation. The core lies in the well-known flower and wood market in the country. Such as: East China - Changzhou, Jiangsu Xiaxi flowers and trees market, Southwest - Chengdu Wenjiang Huamu Market, Central Plains - Zhengzhou Huamu Market, Zhejiang - Xiaoshan Huamu Market.