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After awakening, a healing tissue can be formed in a short time. Wake up the bed temperature 26-28 °C, sawdust moisture content of 50-55%. In order to reduce the residence time of the grafted body in space, it should be put into a hotbed to wake up every time 50 or 100 plants are finished. The grafted plants slanted in a single row in the hotbed, with a width of 1.5-1.7 meters and 40-50 strains. When placed, the main root of the grafted body was 8-10 cm from the geothermal line, and the top of the scion was buried 10 cm. The root system of the grafted body, especially the root system, must be separated by a matrix. The healing condition of the grafted body is often checked. If it is found that the angiosperm sprouts more, it should be promptly removed. The wake-up time is 12-15 days before January and 8-10 days after February. If you are transplanting most of your time indoors, you can extend the reminder time appropriately. If the majority of the storage, as long as the interface to form a healing organization or sprouting buds can be.
Graft body storage and transplanting
Whether or not grafting walnuts can achieve high seedling rate, the storage and transplanting of grafts is the key issue. The fundamental problem is the regulation of temperature and humidity.
1. Stored grafts are properly stored and are awakened. The interface heals well and the sprouts are not germinating or germinating. The portion above the ground diameter of the graft was wax sealed prior to storage. Storage temperature is 3-5°C and relative humidity is 75%. In the storage room (or cellar, cave), the ground first shop 5 cm thick sand, sand moisture content of 8-10%. On one side, a 30-centimeter-high slope was formed using sand first, and a single plant pendulous seedling was placed on the slope with a spacing of 5 cm. It is advisable that the root systems do not overlap each other. Use sand to bury the interface and apply it. Then lay the next row, and so on. When placed, the interface should be used to find the alignment. The buds must be exposed outside and must not be buried in the sand.
2. Before indoor transplanting and transplanting, the interior should be constructed and installed with heat sources, such as heating, soil heating, fire wall, and geothermal line. The geothermal line should be laid 7 days before planting so that the soil can meet the requirements. Fertilization is mainly based on manure, 5000 kilograms per mu, manure should be fine, evenly placed, combined with the buried hotline into the soil. Immediately when the shed is kept warm, the soil temperature at 20 cm depth is above 20°C, and the shed can be locked in mid-to-late September.
Transplantation requirements
After the wake-up call has formed a healing tissue, the sprouting sprouting or sprouting bud has germinated as a handshake. The anvil bud germinating must be cut off. Scissors at the top of the scion must be wax-sealed to prevent loss of water. The variety should be clear and clearly marked. Fixed transplanting, in situ until the fall, 30-40 plants per square meter can be planted, spacing of 12-15 cm, row spacing 20 cm. Temporary transplanting, that is, the second field transplanting after planting, mainly in the winter to make full use of greenhouse conditions to plant more seedlings. Plant spacing 8-10 cm, spacing 18 cm, 60 per square meter. During the transplanting, the ditch was dipped along the line of the soil surface of the transplanting room, and a deep 20-25 cm straight face was cut out, and a planting ditch with a width of 6-8 cm wide was opened on the straight side. Ditch the bottom of some loose soil. Relying on the cut surface in the ditch, put the seedlings vertically, so that the root system is stretched, and the interface of the grafted body is exposed to the ground. The soil is grounded to the ground, and the soil and the root system are closely connected by hand. In order to raise the ground temperature, warm water of 30-35°C may be poured. After the water infiltrate, soil is applied to the interface, slightly higher than the ground.
Walnut Seedlings Breeding Technology
Grafting body wake up