Selection of improved species Cucumber should use high-yield and high-quality varieties that are resistant to low temperature, low light, high resistance to downy mildew, and resistance to wilt disease. Such as Jinyou No. 32, Zhongnong 21, Jinlv 21-8, Jinwang No. 6, Bonai, Xingke No. 8 and so on. Bitter gourd uses low-temperature, low-tolerance seedling light, the results of high temperature and humidity resistance, high resistance to anthrax and bacterial leaf spot disease and other diseases of the early-maturing and early-maturing high-yield and high-quality varieties. Requirements of fruit oil green, thick flesh, melon straight, melon 25-30 cm long, suitable for summer and autumn packing storage and transportation. Timely sowing Sowing date calculation methods: 1. Overwintering and picking cucumbers from the sowing date to the beginning of the fruiting period takes about 92 days; the sales volume has increased significantly since the beginning of the calendar year, and the price also rises significantly during the period before and after 10 days, ie December. 2-12 days. Therefore, September 5-12 is the appropriate sowing date for winter cucumbers. 2. Bitter gourd entered the beginning stage of guava cultivation 175 days after sowing. The sales price was 1 times higher than that of cucumber in previous years, and the period of significant increase in bitter gourd sales volume was 10 days before and after the beginning of summer, ie May 1-10. Therefore, in the last year's October 17-27, a suitable planting period for the overwintering bitter gourd was planted for the overwintering cucumber shed. Colonizing cucumber and interplanting balsam pear 10-12 days after grafting, grafted cucumber seedlings were cut off for 7-10 days, and 4-5 true leaves of cucumber seedlings were planted. Before the colonization, the north and south of the site were planted with a centipede distance of 120 cm. The intertemporal sulcus was "V", the sulcus was 35-40 cm wide, and the depth was 25 cm. The arched surface was arched. Each row of planting double rows, on the surface of a small row of 40 cm wide open about 15 cm wide, 8-10 cm deep ditch, along the ditch watering. According to the spacing of 33-37 cm, the cucumber seedlings were planted in the shallow ditch, and the grafting interface was higher than the sorghum surface. Then cover a silver-white mulch with a width of 130 cm, break the membrane and place the seedlings, and seal the membrane mouth with soil. On October 17-27, cucumbers were planted at intervals of 2-3 meters between the south and the north of the cucumber plants, and watered with bitter gourd. 2-3 days before sowing, the seeds are soaked in hot water of 55°C-60°C for 30 minutes, then soaked in warm water of 25°C-30°C for 48-72 hours, and then directly sowed on the spot, 3-5 capsules per hole. 2-2.5 cm thick. After the emergence of each hole selected to retain a strong seedlings. Hearing Aid,Hearing Assist,Hearing Aid Devices,In Ear Hearing Aids Shenzhen Sunshine Technology Co.,Ltd , https://www.shenzhenyatwin.com