Take root to cut out the leeks of Daejeon, dig up the roots, shake the soil, and then use wheat straw (or straw) to bind small bundles of about 10 cm in diameter and put them in the greenhouse. Greenhouse settings Greenhouses should be chosen where the leewards are sunny, digging pits 70 to 80 cm deep underground, forming a ridge above the ground, covering the sunny side with a plastic sheet, sealing around, and covering the back with corn stalks. 15 centimeters of soil. The greenhouse has a width of 2 meters. Both the east and the west of the greenhouse can be built from adobe bricks or bricks. It is a trapezoid with a narrow width and a thin thickness. The upper thickness is 24 cm and the lower thickness is 30 cm. The management of the yellow peony tightly packed the tied leek roots into the greenhouse, sprinkled with 2 cm thick sand, and then watered it. It is advisable to use water to overflow the sand surface. The greenhouse was sealed with a plastic sheeting. A plastic curtain was covered with a straw curtain to maintain the room temperature at 18°C ​​to 20°C. Every day after the sun comes out, the straw curtain is opened and the sun shines through the plastic sheet into the greenhouse. Watering and harvesting Water the water every 6 to 7 days. When the saggers are yellow, the plastic cloth is opened. After cutting, the plastic cloth is sealed as it is. Usually cut 10 to 15 days.