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(B) Sowing and growing broccoli is a high-grade fine dish, and the seeds are expensive. The seedbed must be carefully grounded, and sufficient base fertilizer should be applied to make the soil fine, smooth, and full. About 15 to 30 grams of seed per acre of land and 6 to 7 square meters of seedbed are required. Low temperature season can be covered with a small arch shed insulation, high temperature and rainy season nursery should use shade nets to take shelter, cooling anti-rainstorm. Gradually remove the cover after planting and carry out hardening. Summer and autumn sowing can be planted in 25-30 days, and 40-50 days in winter and spring sowing.
(3) Before planting and density planting, choose the right place and apply enough base fertilizer. 2000-3000 kg per mu of farmyard manure, 30 kg of compound fertilizer, and 0.5 kg of borax. During the rainy season, sorghum is made and the dry season is low or flat.
(D) Field management After planting and survival, before closing the line, cultivating 2-3 times, loosen the soil and remove weeds, which is conducive to the growth of blue and white flowers.
After the planting, the number of watering should be appropriately reduced, and the root growth should be promoted. During the vigorous growth period of vegetative growth and the formation of flower bulbs, the amount and frequency of irrigation should be increased to prevent drought, pay attention to drainage during the rainy season, and prevent waterlogging.
Broccoli cultivation techniques
(1) The cultivation methods and the adaptability of seasonal broccoli are stronger than that of broccoli, and there are many types of cultivars. According to different climates, different varieties can be selected, which can be cultivated in four seasons and supplied for the first time.