How to Prevent Diseases in Summer Cabbage Planting
Summer temperatures are high, rainfall is high, and it is also a season of high incidence of diseases and insect pests. When planting Chinese cabbage, we must grasp the key links in order to achieve stable production and high yields.
Carefully choose the species. Those early-maturing varieties that are resistant to high temperatures, high humidity, and pests and diseases should be selected to implement shade cultivation. The haze soil has the characteristics of strong moisturizing power and low surface temperature, which is conducive to the growth of Chinese cabbage. It is best to broadcast Chinese cabbage on the haze.
Cover the shade. The strong summer sunshine and heavy rain will bring adverse factors to the growth of Chinese cabbage. Can be placed above the dish rack, stand 1.5 meters high, first cover a layer of agricultural plastic film, and then cover 50% of the area shade net, to avoid the seedlings were exposed to direct sunlight and heavy rain. The sun screen will be opened sooner or later and on rainy days.
Diligence in watering and fertilizing. Dry weather, watering sooner or later, large-scale planting can use micro-pumps to spray water and fertilizer, saving labor and efficient. The fertilizer fertilizer is generally made of quick-acting compound fertilizer or foliar fertilizer, which can be applied once every 10-15 days.
Strengthen pest control. After sowing, use 50% carbendazim 800 times plus 90% trichlorfon 800 times mixed spraying seedbed, insecticidal sterilization; real leaf to prevent spraying in time after the emergence of the use of agricultural streptomycin 500 times liquid 1000 times of thiophanate methyl, 1500 times of root rot, and 800 times of metalaxyl spray or splashing to prevent diseases; locust, cabbage caterpillar 3000 times of imidacloprid, chlorpyrifos 1500 times, avermectin 2000 times Liquid spray control. The period of prevention and treatment should be 7-10 days, and the use of drugs should be stopped one week before harvest to minimize the residual drug on cabbage.
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