Seedling nursery is also the last part of nursery work, but it is also a complex process. The preparation work and the technical quality of the nursery have a direct impact on the quality of seedlings of hazel, the survival rate of planting and the growth of saplings. The emergence depends on the seedlings. The number of seedlings at each level and at each level is checked and investigated. It is also necessary to formulate nursery stock plans and nursery stock operation rules according to the order conditions.
1 lifting
Green branches upright seedlings, hard branches upright seedlings, should be raised in the fall. Grafting seedlings can be raised in the autumn or spring. Autumn seedlings are defoliated after the seedlings reach the soil before freezing, we can gently pull the leaves down by hand, when the hand gently touches the leaves, the leaves will easily fall off when the best lifting time, if If the leaves do not fall off easily, wait for a while. In the spring, the start of seedlings must be carried out after the soil is thawed and before germination. If soil drought is encountered before lifting, the appropriate amount of water should be filled in advance, and the soil should be raised again when the soil moisture is appropriate. We can prepare a small box, knife, scissors and other tools, use a knife to cut the plastic bag, remove the plastic bag, and then open the sawdust around the seedlings from the outside to the inside, take care not to break the roots, until Sawdust all open. In the end, the roots are bare, and we will now see that the iron wire bound during the seedling raising will be cut into the xylem of the seedlings as the seedlings become thicker. We will cut off the seedlings at the wire place. It is precisely because We tied the iron wire beforehand to make it easier to raise seedlings and reduce the impact on the seedlings. However, we must pay attention when we raise the seedlings. Sometimes we will see that some roots must be very long and they are already deeply rooted in the soil. It is necessary to prepare the scissors and cut off the roots directly. At this time, the seedlings can be pulled up completely, and the mother plants of the nursery are to be left, so that they can be replanted in the coming year.
2 Seedling classification
The seedlings dug out should be avoided as much as possible from the sun and sunlight, and graded and falsified in time according to the quality of the seedlings. The grading criteria are based on the height of the seedlings, the number of roots and the diameter of the seedlings. Usually when the height of the seedlings is more than 80 cm, and the fibrous roots are more than 6 roots, the root diameter is 1 cm or more, and the development is full of first-class seedlings, that is, high-quality seedlings. Hazel does not require high seedling stem height, but the root system must be developed. The root diameter of the seedling is 0.5 cm or more and the length is about 60 cm. It can also meet the planting requirements. However, more than five roots are required, and these are also divided into secondary seedlings, which are qualified seedlings. Those with poor root systems are semi-finished products. In fact, they are all able to survive in production, but nursery stocks have to be cultivated for one more year. Graded seedlings must be tied in a certain amount. A bundle is generally between 20-40 strains. Seedlings can be sold immediately after grading, and if they cannot be sold they should be planted.
3 Implants
Implantation is the key technology for the preservation of seedlings. Generally if the seedlings that have just been out of the nursery cannot be planted immediately, they must be implanted first. The length of time for planting can be long or short. If it is planted in the fall, the planting is about seven days. If it is planted in the spring, it will be a winter season.
We first choose the plots, usually near the nursery, choose a sheltered, sunny, well-drained, deep and soft soil, high humus flat land, the area does not have to be too large, more than 10 square meters can do a piece of fake land, we first dig Planting ditch, groove width 30-40 cm, depth 30 cm. Generally, the width of the ditch should be measured by the size of the roots of the seedlings. The ditch length can be between 2-4 meters. Do not grow too long. Be sure to open the ditch in the north and south. Put the roots of the seedlings into the ditch, keep the seedlings upright, place the seedlings one by one in the ditch, cultivate the soil one at a time, fill up one row of false ditch, and then open another ditch, then the ditching soil can also be covered in the first In one row, the height of the earth covering should be at least 10 cm above the ground. This can be done one by one. When planting, different levels of seedlings or different types of seedlings can not be put together and placed in order to avoid confusion, and it is best to do some signs and records. For future identification and sales. Planted seedlings are generally square or rectangular in shape.
4 Lifting, packing and transportation
If the transplanted seedlings are sold or planted, the seedlings must be raised and the seedlings removed from the soil. After shaking out, shake off the excess soil from the root. At this time, we must prepare plastic bags that can be trimmed with thick plastic. We put the seedlings in plastic bags and then wrap them with ropes to increase the temperature inside the bags while keeping the moisture of the seedlings themselves. After that, it can be loaded and transported. Put lightly when loading the truck, and place one of the roots along the way. After installation, cover it with a large plastic cloth to avoid being affected by strong wind during transportation. At the same time, it also guarantees safety during transportation.
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