The Zhongke plant is a specialty medicinal material in China. The bark is used as a medicine, supplementing liver and kidney, strengthening bones and lowering blood pressure, etc. Its high-yielding and high-quality cultivation techniques are as follows: 1 Selecting land, site preparation, sunny terrain, fertile soil, and good drainage neutrality Loam or sandy loam soil. Before planting, apply sufficient basal fertilizer and cultivating it thoroughly. 2 Seedling 2.1 Selection of mother tree and seed treatment When collecting seeds, trees with a tree age of more than 15 years and a sunny growth on the fertile soil should be selected as the mother trees, and full-grown seeds that matured in the year should be used. Seed soaked in water at 60 °C, natural cooling, maintain 20 °C, soak for 2-3 days, when the seeds expand, after peel softening, remove, mix in plant ash and dry soil, mix and sow. 2.2 Seeding Eucommia in the north of Qinhuai and subtropical high mountains, planting from February to March; south of Qinhuai, with the mining with broadcast, drilling, spacing 23-26 cm, 3 cm deep, 4-5 kg ​​per acre After the broadcast, cover the straw curtain and drench the water. 2.3 Nursery Management Nursery management In addition to routine measures, special attention should be paid to keeping the soil moist, and time seedlings, make-up seedlings, and high temperature and drought attention to irrigation. 3 transplanting transplanting in the spring, transplanting land to fully plowing, digging a diameter of about 70 cm, deep 70 cm pit, the pit into the high-quality farmyard fertilizer, fertilization per mu of 1000-1500 kg, spacing 1.50 2 meters, choose seedlings about 100 cm high disease-free seedlings, transplanting seedlings edge. 4 Field Management 4.1 Cultivated and Weeding Transplanting The cultivator is usually 3-4 times cultivated in the same year, and the number of cultivators can be reduced appropriately, and the weeds can be removed in combination with the cultivator. 4.2 Top dressing Each spring before budding and after defoliating, the farmer's manure is applied once, and 2000-2,500 kg of high quality manure is applied per mu. 4.3 The number of irrigation irrigation should be based on the local climatic conditions. Precipitation is greater than 600 mm. In normal years, irrigation is not available. Precipitation is less than 600 mm. It should be irrigated 3-4 times. Before germination, shoot growth and dormancy Each irrigation, 3-5 days before peeling irrigation, irrigation should be combined with topdressing. 4.4 Disease control Eucommia diseases mainly include damping-off, leaf blight, and root rot, damping-off and leaf blight. Spray 65% ​​zein zinc WP 500 to 600 times in the early stage of the disease. Spray 25 days. Second, root rot with 70% thiophanate-methyl WP, 30 to 45 cm wide, deep 50-70 cm ring groove 3-5, 100-150 g / strain, applied to the periphery of the crown. 5 Harvesting and Processing 5.1 Harvesting The eucommia ulmoides should be planted for more than 10-15 years before it can be peeled and peeled in April-June. Saw a circular mouth with a saw, deep to the xylem, 80cm upwards and then saw the second ring mouth. An incision is made between the two annular mouths, and the strips are peeled off at the longitudinal incision of the bamboo knife to separate the bark from the xylem. 5.2 After peeling the bark and boiling it with hot water, the layers shall be stacked tightly and laid flat on the flat ground at the bottom of the wheat straw mat. The wood shall be covered and the weight shall be compacted. The surrounding shall be tightly wrapped with grass to make it perspire, about 7 days. The endothelium is dark purple brown, remove the sun, and scrape off the rough skin.