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In addition to nitrogen, phosphorus and potassium, celery's demand for boron is greater. Applying zinc fertilizer can reduce nitrate and nitrite content in fresh vegetables. The production of 1000 kg of celery requires 2.0 kg of pure nitrogen, 0.93 kg of phosphorus pentoxide and 3.9 kg of potassium oxide. Before planting, 4000-5000 kg of organic fertilizer is applied per mu, 150 kg of bio-organic compound fertilizer, 40 kg of urea, 25-35 kg of superphosphate, 40 kg of potassium sulfate, and 1-1.5 kg of zinc sulfate. The plants entered a vigorous growth period and the first topdressing was performed. Each acre applied 3 kg of pure nitrogen and 5-6 kg of potassium oxide. After two months into the second topdressing, pure nitrogen 2 ~ 2.5 kg per acre, potassium oxide 4 ~ 5 kg. Strong growth period can be sprayed 0.2~0.5% borax.