Leeks are rich in iron, calcium, and vitamin K, and they are the protagonists on diet tables. They are popular vegetables. Use winter greenhouses to plant winter amaranth, the Spring Festival can be listed, the harvest period of up to 4-5 months, per acre yield of up to 3,000 kilograms or more. Now introduce its cultivation methods are as follows: Selection of improved species Choose color tadpoles with good palatability, high yield, strong resistance and cold resistance, such as dahongpao of red leaf garden type and full leaf red. Soil fertigation We choose land plots with flat topography, fertile soil, convenient irrigation and drainage, and low weeds. We will plow 15-20 centimeters deep in November, apply 3,000 kg of high-quality rotting organic fertilizer per acre, and 25 kg of diammonium phosphate as base fertilizer. Afterwards, we made a flat 1~1.2 meters wide. Timely sowing You can sow in the middle or late November. Before sowing, we should use enough water to plant 3~4 kg per acre. Mix the seeds with appropriate amount of fine sand and spread it onto the surface of the noodles. Use the foot to cover it or cover with a layer of dirt and then cover the film. Afterwards, a small arch shed 70 to 80 centimeters high was supported by bamboo strips 2 meters long and covered with a thin film. Strengthen management On the basis of pouring water, watering is not required before emergence, and emergence can occur within 5 to 7 days. After the cotyledon was unearthed, the mulching film was removed for the first time weeding the seedlings. When the two true leaves are grown, the second time weeding and seedlings are carried out, and the first time the fertilizer is poured for the first time, usually 10 kg of nitrogen-phosphorus compound fertilizer is topped off, and the second fertilizer is applied every 15 days and then watered. Mushi compound fertilizer 5 kilograms, after each harvest 1, top dressing watered once, each time fertilization of 5 to 10 kilograms per acre or 1,000 kilograms of human waste manure. At the end of March of the following year, when the temperature rises, small arch sheds can be removed, ventilation can be enhanced, and high-temperature burning of seedlings and white rust of leek can be prevented. Timely harvest The leek grows to 4~6 leaves, the plant height is 10~15 centimeters and can be listed among large seedlings. At the same time, the leek is replanted so that it can be harvested in batches until the early June. Pay attention to the fact that every time you receive income, you need to keep a small amount of time, keep the seedlings evenly, and increase the output. Medical Cotton Swabs,Sterilized Medical Cotton Swabs,Disposable Medical Cotton Swabs,Single Use Medical Cotton Swabs Henan Xianghe Medical Materials Co., Ltd. , https://www.xiangheweicai.com