Leek also called foreign garlic, onion garlic, flat leaf onion, foreign garlic, etc., cold, heat, sand, clay can be cultivated, but rich in organic matter, fertile insulation, clay loam is the most suitable. First, planting seedlings in spring sowing in March-April, autumn sowing in July, about 2.5 kg sowing per acre, can be planted 16 acres of Daejeon. After the seedlings are leveled, they are watered, soaked after water infiltration, and covered with 1 cm of soil. Seedling height 5-6 cm seedlings 1-2 times. When the seedling age is 50-60 days, it can be planted in the field. Second, the planting and field management of spring broadcasters were planted in June and autumn broadcasters were planted in October. Before the planting, apply the base fertilizer, make it smooth, and make it flat. The depth of planting is appropriate to cover the white roots of the seedlings. Plant spacing; if harvesting tender seedlings should be slightly dense, 5 cm 20 cm; if the pseudo stems, buds should be slightly diluted, 10-15 cm 60-70 cm. After the planting, timely watering of the seedlings shall be conducted in a timely manner. After the seedlings are sowed, the cultivating and weeding soil shall be strengthened to allow them to grow roots. During the prosperous period, it should be watered in time to keep the soil moist. Leek has more requirements for nitrogen fertilizers, combined with watering can be followed by ammonium sulfate or urea. In the autumn, pour enough frozen water before entering the winter, and pay attention to cover the dung after winter. In order to make onion white and tender, quality improvement can be divided into grades when the pseudo-stem length is up to 2-3 cm. Each time the interval is more than 10 days, the depth of soil is not limited to the leaf sheath. It can be harvested about 30 days after the last earthing. Third, harvesting and seeding spring broadcast can be harvested in October, can be marketed at any time according to market needs, can also be listed for 1-2 months of winter storage. Autumn broadcasters will continue to harvest and market their products from March to April of the following year. They can also harvest flower pods in May. The average mu production of green onion seedlings 4000-5000 kg. Seeds are generally sowing in autumn and seedlings are wintering. Winter frozen water covers the winter, March-Apr. Less watering after convulsions, appropriately increasing the amount of watering when the flower bulbs are formed, and top dressing with watering once after flowering to keep the soil moist and collecting seeds in July.
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