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First, choose the variety. The growth period of watermelon cultivated in the autumn is short, the early period of high temperature and high humidity, the temperature difference between day and night is small, the late season often meets the low temperature and rainy weather, the weather conditions are changeable, the requirements of the varieties are strict, and the high quality, high yield and high temperature and humidity, female flowers should be selected during cultivation. Well-differentiated, easy-to-eat melons, tougher skins, resistant to storage and disease resistance, and early-maturing or medium-maturing varieties. For early maturing varieties, Jing Zheng Kang No. 6, Shao Zi Ju Bao, Zheng Kang No. 7, Su Mi No. 1 and small fruit-shaped gift watermelons can be selected, and medium-maturing varieties include Fengshou No. 2, Shao Zi Guan Long, Di Long, and Xin Xi. Nong 8 is suitable.
Second, the form of cultivation. The watermelon cultivated in late autumn must not only take into account the problem of pre-discharge, but also take into account the timely watering of drought, in addition to the choice of terrain Gaozao, soil fertility, drainage and irrigation convenient land, but also must use ridge or open Groove cultivation. The following are the main forms of cultivation. 1 single line cultivation. It should adopt small high ridge cultivation, generally ridge height 15 to 20 cm, ridge bottom width 50 cm. Plants, row spacing can be 0.5 meters 1.5 meters or 0.4 meters 1.7 meters. 2 double row cultivation. Should use a small sorghum, sorghum height 15 to 20 cm, width 50 cm, width 60 to 80 cm, general strain, spacing 0.5 meters 3 meters or 0.4 meters 3.5 meters, two lines of watermelon climbed in the opposite direction.
Third, soil disinfection. Soil disinfection is usually done before sowing or planting, but it can also be combined with soil tillage. To prevent the soil disinfection of watermelon wilt disease commonly used pesticides are 50% thiram, WP, approx. 1 kg for every 667 m2; 50% carbendazim WP 400-600 times or 70% thiophanate-methyl Wettable powder 600 times liquid, irrigated or sprayed planting soil, can also be mixed medicine, soil ratio of 1:100, 1 to 1.5 kg per 667 square meters, applied into the planting hole or around the sowing hole.
During the cultivation of autumn watermelon, attention must be paid to various aspects, such as varieties, cultivation forms, and soil disinfection, which will affect the quality and yield of watermelon. How do you do scientific cultivation? Should pay attention to the following points: