How to grow heat-resistant cauliflower

How to grow heat-resistant cauliflower? Please introduce the planting method of heat-resistant cauliflower can refer to the following methods: 1. Select cauliflower varieties with strong growth, good heat tolerance, strong disease resistance and early maturity. 2. The timely sowing time should be determined according to the characteristics of the variety and the climatic conditions of various places. The suitable sowing time in Zhengzhou is from June 20 to July 10. 3. the criteria for cultivating strong seedlings are as follows: calendar seedling age up to 20-25 days, physiological seedling age up to 4-5 true leaves, large leaf area, thick stem and well-developed root system. Before raising seedlings, the nutrient soil was prepared with aseptic field soil (preferably selected from plots where cruciferous vegetables had not been planted) and mature organic fertilizer at the ratio of 6 ∶ 4. Every cubic meter of nutrient soil was mixed with 500g of compound fertilizer, 100g of carbendazim and 100g of trichlorfon. Before sowing, pour the nutrition bowl into water, sow seeds after water infiltration, sow 1-3 seeds in each bowl, and cover a layer of fine dry soil with a thickness of 0.5-1 cm after sowing. It is best to cover the seedling bed with sunshade net to prevent heavy rain erosion. 4. It can be planted when the reasonable close planting calendar seedling age reaches 20-25 days and the physiological seedling age reaches 4 true leaves. Cauliflower has a well-developed root system and needs a large amount of fertilizer. Before planting, it is necessary to apply sufficient base fertilizer, 10 cubic meters of high-quality farm manure or more than 200 kilograms of cake fertilizer and 25 kilograms of compound fertilizer per mu. The ridge with a height of 15 cm and a width of 50 cm at the top of the ridge was planted diagonally at a distance of 40 cm on both sides of the ridge, with 2500 to 3000 plants per mu. 5. After field management and planting, the seedlings were watered twice in a row to promote the growth of seedlings. After that, the principle of dry and wet land should be grasped when watering again to ensure the growth of root system. After the ninth true leaf of the seedling appears, the ground should be kept moist frequently. Combined with watering, 5 kg / mu of urea was applied every 10 days. When the flower bulb appeared, 20 kg / mu of urea was applied once, and potassium dihydrogen phosphate or Jianzhibao solution was sprayed on the leaves. 6. Timely harvest when the flower branches at the base of the bouquet are slightly loose, the bouquet has fully grown and the quality is better. Click to get more cauliflower planting techniques click to get more vegetable planting techniques