Summer temperatures are high, and many diseases and insect pests have a greater impact on the growth of Chinese cabbage. After years of practice, the author believes that there are five key measures for successful cultivation of Xia Da cabbage.
Choose a variety. Choose early-maturing varieties that are resistant to high temperatures, high humidity, and pest resistance, such as Xiafeng 40, Xiabao, and heat-resistant white.
Yin (concave) cultivation. Summer cabbage is best live on the haze. The haze soil has strong moisture and low surface temperature, which is beneficial to the growth of Chinese cabbage.
Cover shade nets and plastic film. Raise the shelf above the dish, raise the height by 1.5 meters, cover with a layer of agricultural plastic film, and then cover the shade net with 50% area. The sun screen will be opened sooner or later and on rainy days.
Diligently water and fertilize. Dry weather, watering sooner or later. The fertilizer fertilizer is generally made of quick-acting compound fertilizers or foliar fertilizers, such as Zicco Compound Fertilizer, Potassium Dihydrogen Phosphate, and Urea. Apply once every 10-15 days.
Prevent pests. After sowing, use 50% carbendazim 800 times plus 90% trichlorfon 800 times mixed spraying seedbed, insecticidal sterilization; real leaf to prevent spraying in time, the choice of agricultural streptomycin 500 times, Thiomitraz 1000 times and other spray or splashing water to prevent diseases; aphids, cabbage caterpillar 3000 times imidacloprid, avermectin 2000 times spray control. The control period is preferably 7-10 days.
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