(1) Seeds of dragon teeth? After B-seeds mature in the middle or late September, they must be harvested. It is very difficult to search on the ground because it is waiting for fruit. When collecting seeds, great care must be taken to distinguish seeds from Araliaceae trees. Do not mix seeds such as Robinia pseudoacacia and Acanthopanax senticosus. Usually dragon teeth?B wooden cones are pentagonal, 4 mm in diameter. Smaller fruit shape, this is the key to identify the authenticity. (2) Seedlings 1 sowing seedlings. Seeds germinate over winter. Seeds sowed in spring must be buried in winter. That is, after harvesting, the seeds are immersed in clean water, rinsed to remove the pulp, rinse the seeds, remove the impurities, and mix the seeds with wet sand. Sand moisture content of 40%, that is, with a hand, sand into a group and no water, the sand is three times the size of the seed. Digging in the leeward sun at a width of 50 cm, a depth of 30 cm, long species, the number of small sand In the ditch, the species and sand are placed in the ditch, and a drapery is covered on the ditch. Every 2-3 days, the ditch is planted and the sand is turned up and down once. When the land is about to be frozen, dig a trench in the leeward sunny area. Ditch depth 40 cm (in the local permafrost), width 50 cm, ditch bottom l0 cm water containing 40% wet sand, the species, sand into the ditch, cover the ditch and then cover 10 cm thick wet sand, Cover soil 30 centimeters, the middle of the ditch from the bottom up l 秫 stalk grass to facilitate the faint breathing of the seeds. To spring when the climate is stable and warm, remove the species, sand, sun in the sun, see 30% of the seed when the crack, you can sow. The autumn sowing seeds are sown according to the above-mentioned method of pre-seed treatment and before the earth is frozen in the year. Longya? B wood seeds have the characteristics of ripening, artificially created after the harvest to the appropriate temperature and humidity conditions, so that the embryo continues to develop, and then by the temperature treatment, can be more than 80% of the emergence rate. Sow for bed. Longyao? B wood seedlings are good for sowing. The bed is 100 cm wide and 10-15 cm high. Loose earth is selected. Seedlings in the mountains can be made as described above. Shun hit the bed, generally do not apply fertilizer. Seeding method. Sub-broadcast and broadcast two. That is, in the bed every 10 cm, evenly spread l species of sand; sowing is about to spread the sand evenly spread the bed surface, and then sieve the fine loam soil spread bed surface, 2 cm thick can be. Each hectare with wet species 11250-15000 kg . Miaomiao. After the emergence of the seedlings, the seedlings should be 5 cm l0 cm or 5 cm 8 cm spacing, must not be greedy love seedlings, 100-110 strains per square meter seedlings is appropriate, 750,000-90,000 seedlings per hectare. Disease prevention and control. Longya?B wood seedlings are very resistant to pests and diseases, but there are also individual plants infected with leaf spot disease. In the first half of June, a 300-times solution of zein can be sprayed and controlled. 2 buried root nursery. Due to the shortage of Longyao B wood provenances, seedlings can also be planted by the buried root method. Dragon teeth? B wood root is shallow, horizontal stretch, meat, high water content, and strong ability to deliver. The 0.3-0.5 cm thick root is the best. According to the density of root buds, it is generally cut into 30-50 cm long roots. The roots are connected end to end, every 10 cm horizontal row bed, and then used. Sieve soil covered by 5 cm and compacted. To prevent drought, timely watering, keep the bed humidity. The year can be raised. Longyao? B wood seedlings strong cold, without winter over special management. (3) planting long buds? B wood seedlings rough l cm, seedling height 30 cm can be planted on the mountain. Those who do not meet this standard can be nursed in the nursery for 1 year. 1 planting sites. Dragon teeth? B root root meat, hi-rich humus soft soil layer, brown forest soil is the most suitable. Longyao? B wood is also a semi-positive tree species, the slope of the west to the best sun Chaoyang, the masses said half Yang and a half back. 2 planting methods. Dragon teeth? B wood before planting, land preparation first. In order to facilitate the protection of the planted area, the mountain must be manually refitting the fish scale pit, and a pit with a diameter of 100 cm is appropriate. The planting density was 4440 per hectare with a spacing of 150 cm and 150 cm. Before the planting, a small hole was drilled in the fish scale pit to meet the rhizosphere depth of the seedling surface. When planting, we must step on the side to raise the seedlings, so that the root system can stretch to facilitate survival. If there are signs of early spring, irrigation should be timely. Sporadic shrubs after planting can be preserved, so as to prevent the occurrence of diseases and insect pests. 3 post-plant management. Longyao? After the B-trees are planted and survived, we must keep the weeds in the pits empty. In June and August each year, we need to bury the soil in the pits. Generally no fertilizer is applied. In particular, chemical fertilizers, such as ammonium nitrate, ammonium sulfate, and ammonium bicarbonate, are most likely to burn the root system, because the teeth of dragon teeth and B root cannot withstand the stimulation of chemical fertilizers and should be banned. Dragon teeth? B wood grows to 3 years, sprouting a few branches, so that the tree appears plexiform, then in addition to sprouting in time, keep 3-4 thick branches, the formation of the main lateral branch match decent tree shape, favorable for future Increase production. Aquatic methods. In a greenhouse, dig trenches that are 30 cm deep and 100 cm wide, depending on the amount of dry wood. Spread an entire piece of plastic cloth from the bottom of the trench to the ditch. Do not leak water. The groove is fixed 20 centimeters away from the ground. Rod to stand upright. 10 cm deep clean water is poured on the plastic sheeting in the groove, and the thorny dry tooth material is sorted and sorted according to 40 cm, 50 cm, and 60 cm height, and the equal height of the dry material is placed in the groove, and the rough head is turned downwards. Place and fill the groove. The temperature of the greenhouse should be controlled at about 16°C, and the temperature of the room temperature and light intensity can be adjusted by lifting or dropping the straw curtain covered by the greenhouse. In this way, it is possible to control the growth rate of shoots and shoots and meet the market demand and the best benefits.
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