In the spring, the cucumber spring adopts the supporting measures for warming and heat preservation, and the spring is covered by the early shed and the bow layer. At the time of planting, the small arch shed was buckled, and the grass scorpion outside the shed was planted on April 8. It was listed on April 30. From the colonization to the slow seedlings, the prevention is mainly based on the combination of ecological control and chemical control. The ecological control is mainly to strengthen the ventilation. After the cucumber seedlings are slowed down, the morning wind is 30 minutes before sunrise, and the external temperature rises. High, ventilation time is gradually extended (1 to 2 hours). At the end of May, the bottom wind is appropriate. After the seedlings are slowed down, the spraying is started to prevent the residual spot disease, anthracnose, mancozeb, and carbendazim. The spray is applied once every 7 to 10 days, and the drug is taken once every 3 to 5 days after the onset. The disease is quickly controlled. Watering on the first day of mid-May, the next day, sunny high temperature shack, 44 ° C suffocating for 2 hours, 48 ​​° C suffocating for 1 hour, the effect of anti-downy mildew. The land preparation ditch applies 10,000 kilograms of high-quality farmyard manure, and the planting fertilizer is 25 kg of potassium sulfate. With the water, the manure is diluted 4 times for a total of 2,500 kilograms, and fertilized according to the principle of one time more than one time. According to the above management method, the seedlings grow neatly and consistently, strong, light, melonous and fast. Hespax Kids Gloves,Children'S Protective Gloves,Kids Safety Glove,Kids Protective Safety Gloves Jiangsu Hespax Security Co., Ltd , https://www.hespax.com