First, the variety surveyed on the road found that the variety is not right, it is difficult to adapt to the summer high temperature, strong light and other environmental conditions, is one of the important factors that lead to the summer cabbage does not worry. Here, it is recommended to sow cabbages in summer and high-temperature, high-humidity, and pest-resistant early hybrids should be selected. Barrier Mesh,Plastic Fence Mesh,Insect Barrier Netting,Agfabric Insect Netting Changzhou Satidi Import and Export Co., Ltd. , https://www.guanjiejt.com
The second is to strengthen fertilizer and water management data, indicating that Chinese cabbage grows fastest during the ball stage, absorbing the most water, absorbing 89% of the total absorption of nitrogen, phosphorus and potassium. If the fertilizer and water are insufficient and the growth is hindered, it will not be very good. ". It is recommended to apply base fertilizer (based on more than 10 square meters of farmyard manure + 200 kg of abundant source of calcium and magnesium fertilizer) and to promote its stalks during the Chinese cabbage cabbage-balling period, with about 50 pounds per acre of ash alfalfa calcium. Leaves grow. In addition, we must pay attention to the summer hot weather, evaporation of large amounts of water, need to keep enough water to keep the soil moist is appropriate.
The third is to prevent pests from planting cabbage as soon as possible, which is vulnerable to diseases. It is recommended that it be prevented and prevented from affecting the normal growth of Chinese cabbage. Such as bacterial soft rot, can choose to use copper, can kill 3000, streptomycin and other agents to prevent and cure. For cabbage "dry heart" situation, it is recommended to pay attention to spray calcium fertilizer foliar to prevent. Such as aphids, cabbage caterpillars, etc. are relatively prone to occur in this period, and can be controlled with high-efficiency, safe, and low-toxicity insecticides such as imidacloprid or Kangkuan.
Avoiding summer cabbage "does not care"