In fertilizer nutrients, nitrogen and phosphorus are most needed in the whole growth period, especially in the bulbous expansion stage, and potassium fertilizer is required after flower bud differentiation. Among the trace elements, boron and molybdenum are most needed. The production of 1000 kg of green cauliflower requires 2.5 kg of pure nitrogen, 1.1 kg of phosphorus pentoxide and 2.9 kg of potassium oxide. Before planting, 2500 kg of organic fertilizer was applied per mu, 100 kg of biological organic compound fertilizer, 50 kg of urea, 20-25 kg of superphosphate and 30 kg of potassium sulfate. Into the rosette period, the first time dressing, 4 kg of pure nitrogen per acre, potassium oxide 6 kg. The second time in the rosette was topdressing, 2.5 kg of pure nitrogen and 4 kg of potassium oxide were applied per 6 mu. In the initial stage of flower bulb formation, 0.2-0.5% borax can be sprayed out of the root.