1 Applying the base fertilizer during the planting period: Before the transplanting of the tomato seedlings, the amount of high-quality farmyard manure is applied per mu, and 10 kg of urea, 10 kg of ammonium phosphate, 40-50 kg of superphosphate, or a sufficient amount of high-quality soil fertilizer is applied. , potassium sulfate ternary compound fertilizer 25 ~ 50 kg, urea 10 kg. 2 Fertilization during the strong period: When the tomato seedlings grow to 5~6 leaves, if the leaves are light, the foliar spray can be applied. Commonly used fertilizers include 300 times urea solution, 300 times potassium dihydrogen phosphate solution, and 0.1% to 0.3% potassium sulfate compound fertilizer solution. Spray once every 10 days during the strong period. In addition, foliar spray fertilizer can be combined with the control of pests and diseases. 3 The result period is timely topdressing: the diameter of the first fruit is 1.5~2.5 cm when it is topdressed and watered, generally 15~20 kg of ammonium nitrate per acre, 20~30 kg of superphosphate, or 5 kg of urea and potassium sulfate Fertilizer 10~20 kg, water is applied after the ground is applied. When the second and third fruit grow to a diameter of 3 cm, the second and third fertilization water treatments are respectively carried out, and 10 kg of urea per acre and 15-20 kg of potassium sulfate compound fertilizer are used for the first time. In the fruit-bearing period, it can be combined with spraying to carry out root dressing, using fertilizer such as potassium dihydrogen phosphate.
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