The chives are adaptable, short in growth period, not susceptible to pests and diseases, and easy to cultivate. Although the yield per mu is only about 1,000 kg, the economic benefits are high. The environment requires that the scallions have a cool climate, strong cold resistance and heat resistance, the germination temperature is 13-20 degrees Celsius, the stem and leaf growth temperature is 18-23 degrees Celsius, and the root growth is suitable for the ground temperature of 14-18 degrees Celsius. Growth rate is slower than Celsius. Due to the shallow distribution of roots, the water requirement is less than that of green onions, but it is not resistant to drought. The suitable soil moisture is 70%-80%, and the suitable air humidity is 60%-70%. It requires medium intensity for light conditions, easy to age under strong light conditions, increased fiber, poor quality, suitable for loam and heavy soil land suitable for loose, fertile, drainage and watering. It is not suitable for planting in sandy land. A balanced supply of nitrogen, phosphorus, potassium and trace elements is required, and nitrogen fertilizer cannot be applied alone. The planting season is planted in the spring and autumn seasons; the protected land can be planted all year round in summer; the shade net can be planted in summer. It is generally harvested 60-80 days after sowing, and can be harvested 30 days after transplanting. The varieties with high-purity aroma are selected for the good varieties. At present, the four-season small shallots and Fujian fine shallots perform better. Site preparation and fertilization, regardless of planting or transplanting plots, should be finely ground and applied to the base fertilizer. Apply 3,000 kg of decomposed and finely divided organic fertilizer per mu, or more than 1000 kg of chicken manure after puffing and decomposing; make a 1.5 m wide and 8-10 m long car, and make the summer and low-lying land more high. The ground is 15-20 cm high and surrounded by drainage ditch. Seeding and seedlings are carried out by means of striping or spreading. The spacing between the strips is 10 cm and the soil is 1.5-2 cm thick. The seed is 2-4 kg per mu. To prevent the damage of underground pests, the sulphur is mixed with sieved fine soil before planting. In the face, you can also use the wheat bran mixed with the scent of trichlorfon to make a poison bait. Sprinkle it on the seedbed after sowing in the evening and pour the bottom of the water. Transplanting and planting can be transplanted 40-50 days after sowing, each 8-10 plants a hole, row spacing 12-20 cm, hole spacing 8-10 cm, should not be shallow, 4-6 cm is appropriate, timely pouring Plant water. It can also be harvested directly after planting without transplanting. The field management before and after emergence and transplanting survival can not be drought, suitable for small water, watering, seedling 1-3 leaf stage and transplanting seedlings to control watering, cultivating loose soil 1-2 times to promote root growth, afterwards Watering once every 7-10 days. If the application of base fertilizer is less, or the harvesting period is too long, it is necessary to topdress 1-2 times, apply 300 kg of decomposed puffed chicken manure per acre, sprinkle it in the row and timely cultivate, such as open hole application effect is better. The roots should be 1-2 times later. In summer, the temperature is high and the light is strong. Pest control mainly includes downy mildew, gray mold, purple spot and thrips, leaf miner and other hazards. Agricultural prevention and physical control methods should be used as much as possible, and biological or low-toxicity and low-residue pesticides can be used for prevention and control. For the prevention and treatment of downy mildew, 68.75% silver method, 72.2% Plucker can be used; 40% for the control of gray mold can be used for Shijiale; for the control of purple spot disease, 70% methyl thiophanate and 70% mancozeb can be used; Fuling; 1% Baolong can be used to control leaf miner. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Interventional Accessories,Introducer Sheath,Introducer Sheath Kit,arterial sheath introducer Anesthesia Medical Co., Ltd. , https://www.trustfulmedical.com