Seedlings of seedling trees for seed storage

The lampstand tree is a deciduous tree or shrub. The height of the tree is 6 to 20 meters. The bark is dark gray and the trunk is straight. The crown is conical and the branches are layered. It resembles a lampstand that resembles an inverted umbrella. The leaves are large and green and beautiful, and the white flowers that bloom from May to June are elegant, clean and charming. The flowers are bright and colorful after flowering. They are quite ornamental. Should be solitary in the courtyard, lawn, but also for the street trees. Lampstand trees are beautifully landscaped with beautiful tree leaves, beautiful leaves, and elegant flowers. They are called gardening treasures. Flowers, fruits, leaves and branches all have unique ornamental effects. It is a green tree species with great development potential. Lampholder trees have lax soil requirements and are neutral, acidic, or slightly alkaline. They grow particularly well on wet, deep and fertile soils. Fine and uniform wood, straight and hard texture, easy to dry, good rut performance, can be used for construction, furniture, toys, sculptures, agricultural implements and plywood, etc., pulp and seeds have high oil content, can be used as food chemicals and light industry and chemical industry Raw materials, bark can be extracted tannin extract, leaves for feed and fertilizer, flowers are honey sources, the body is a treasure. The range of fitness ranges from the north to the southeast, the east to the coastal cities, the south to Guangdong, and the west to Yunnan. The river valleys and the relatively humid hillsides with an altitude of 1,700 to 2,000 meters are all distributed. Great tree species with great development prospects in the development of the western region. Seed pedestal tree seeds are generally mature from mid-September to October, when the stone fruit is purple to blue-black when the fruit picking branches or bamboo shoots shoot down the ear, the kernel will be stacked for a few days, until the skin becomes soft when the skin becomes soft when rubbing in the water , Floating out of the pulp peel and impurities, that is, the seeds, because the seeds are dormant, can be harvested with the seeds of the fall with the flat bed drilling, seedlings can be seedlings in April of next year, such as the seeds of early spring sowing, not suitable for storage Requires about 120 days of low-temperature sand accumulation (1°C～5°C) through the mixed wet sand to allow the seeds to go through the dormancy period, and at the same time maintain a certain moisture content of the seed, so as to avoid that the bone seed shell is not easy to absorb due to dryness Loss of water in the reservoir caused the phenomenon that seed physiological water shortage is not easy to germinate and sprout. It can be used to seed germinating in early spring before sowing, and kill two birds with one stone. The seed layered sands have a high topography with a high topography. The earth is easy to be drained. The earth pits are 1 meter deep and 50 cm to 60 cm deep. The length is determined by the number of seeds. The bottom is leveled, and the bricks are laid in layers. The wet fine sand is 6 cm thick, then the seed is mixed with 2 times fine sand on top, the thickness is about 30 centimeters, and then the fine sand is covered with 15 centimeters to 20 centimeters into the ridge shape. Every 1 meter is erected with a straw in the pit to facilitate Breathable, and finally covered with a layer of film in the pit, both sides of the compaction to prevent wind movement, in order to help block the rain and snow poured into the pit. After every 15 days or so, check and flip once. If there is water shortage, sprinkle water to keep it moist. Choose nursery land and choose landslides with high topography and drainage, sandy loam soils or soil lands, remove debris, spread salty compost or compost for each acre before soil preparation, and apply 10 kg of ferrous sulfate powder to sterilize the soil. disinfection. The ground leveling is fine, the north-south width is 1 meter wide and the gong is 25 centimeters high. Planting and sowing is generally done from late March to early April after the soil is thawed. One month before sowing, it is often noticed that the seeds of the stratified sand are checked for turning and moisturizing. As the temperature increases, the seeds begin to sprout, such as the seeds Or when the radicle whiteness reaches 40% to 50% of the total amount of seed, it can be sowed. Pre-cast trampoline irrigating water to maintain a certain humidity, each line broadcast 3 lines, the bar from 20 cm to 30 cm, the ditch depth of 1.5 cm, banners 6 cm to 8 cm, sowing rate per square meter 25 grams to 35 grams, cover fine The sandy soil is 1.5 cm thick. After sowing, the flat surface is planted. Each acre has a net of 125 grams of prometryn plus 25% of wettable herbicidal ether 20 grams of water and 25 kilograms of water, and is sprayed and sprayed on the seedbed to weed. Finally, a small shed of membranes was set up on the seedbed to increase the temperature and increase the rate of emergence. No watering was required before emergence. Strengthen the seedling management After the seedlings are released, the two sides of the small arch shelter shall be opened for ventilation, and the ventilation time and ventilation volume shall be gradually increased to enhance the resistance through the hardening seedlings, and then the diaphragm arches shall be removed. If it does not rain for a long time, or when the summer heat is high, especially before and after the wheat harvest, dry it in time. Weeding should be controlled in addition to the principle of early addition to small additions, weeds should be hand-pulled between the lines to avoid injury, weeding and soil protection combined, the seedlings and make-up seedlings should be synchronized simultaneously, timely drainage after rain. Lampstand trees grow from mid-May to mid-August and carry out 2 to 3 top-dressings. They use decomposed human excrement or pig manure urine for 3 bucks per acre to add 20 lbs. of water, and 10 to 15 kg per mu for mature cakes. About 15 tons of cake fertilizer, 4 kg of urea per acre, combined with timely fertilization of watering. In the late stage of growth, nitrogen fertilizer is stopped, and phosphorus and potash fertilizers are added. Also, 0.3% to 0.5% potassium dihydrogen phosphate solution may be sprayed on the foliage to promote the seedling woodiness to cultivate the seedlings. The lampstand tree is generally free of pests and diseases. In the autumn, there are floating dusts that injure the bark and affect the viewing. The fruit can be sprayed to control 1/1000. Cuttage reproduction The robust one-year-to-two-year-old shoots were cut in the late autumn. After the winter sand traps, the survival rate of cuttings in spring was high. Sub-root transplanting lampstand trees are easy to divide. After autumn leaves fall or before germinating in early spring, digging branches with fibrous roots should be excavated under the mother plants, and branches with fibrous roots can be transplanted in the early spring. On the March 16th, 2003, the author planted seedlings on the lampa trees, and began to emerge on April 2. The emergence rate was 85%. The survey was conducted on August 18. The high growth reached 35.5 cm to 41.6 cm, the leaf length was 11.8 cm, and the leaf width was 5.5. Centimeter, base diameter 0.67 cm, grows vigorously.