The production of 100 kg of tomato requires 0.4 kg of nitrogen, 0.45 kg of phosphorus, and 0.44 kg of potassium. According to the calculation of 5,000 kilograms per mu, 2,000 kg of high-quality organic fertilizer, 15 kg of ammonium sulfate, 50 kg of superphosphate, and 15 kg of potassium sulfate are used as base fertilizer before planting. When the first fruit is enlarged to the size of the egg, it should be top-dressed for the first time. Mushi ammonium sulfate 18 kg, superphosphate 15 kg, and potassium sulfate 16 kg. When the third or fourth ear enlarges to the size of the egg, it should be applied in a timely manner, "fruit fertilizer" should be applied in a timely manner. In this case, a large amount of fertilizer is required, and the amount of fertilizer should be appropriately increased. Each application of ammonium sulfate has 20 kg of ammonium sulfate and superphosphate 18 per acre. Kg, potassium sulfate 20 kg. Each top dressing should be combined with watering. During the fruiting period, foliar spraying was performed with 0.1%-0.2% potassium dihydrogen phosphate and sessile fruit.
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