Tomatoes "Three Phases" Fertilization Create High Yield

No matter whether the tomatoes are cultivated in open or protected areas, phosphorus deficiency and potassium deficiency are often caused by improper fertilization time, resulting in debilitating plants, resulting in deformity and other symptoms, resulting in low yield, poor quality, and poor efficiency. Therefore, in the whole growth period of tomato, according to its growth characteristics, timely fertilization should be carried out during the planting period, the vigorous growth period and the result period to ensure high quality and high yield of tomatoes.

1. Fertilizer application at the planting stage: Before the transplanting of tomato seedlings, 1,000 kg of high-quality farmyard fertilizer, 10 kg of urea, 10 kg of ammonium phosphate, 40-50 kg of superphosphate, or 1,000 kg of high-quality soil-fertilizer can be applied per mu. Potassium sulfate ternary compound fertilizer 25-50 kg, urea 10 kg.

2. Fertility in the growing season: When tomato seedlings grow to 5-6 leaves, they can be sprayed with foliar fertilizer if the leaf color becomes light. The commonly used fertilizers include 300 times urea solution, 300 times potassium dihydrogen phosphate solution, 500 times gexin liquid fertilizer, and 0.1%-0.3% potassium sulfate compound fertilizer solution. Each fertilizer is sprayed once every 10 days during the vigorous growth period. Surface spray fertilizer can be combined with the prevention of pests and diseases at this stage.

3, the results of timely fertilizer: the first fruit in the tomatoes when the diameter of 1.5-2.5 cm long when the top dressing water, usually 15-20 kg ammonium per acre, superphosphate 20-30 kg; or 5 kg of urea Potassium sulphate compound fertilizer, 10-20 kg, was applied after the ground was applied. When the diameters of the second and third fruits are as long as 3 cm, the second and third fertilizations are performed respectively. Each mus of urea can use 10 kg of urea and 15-20 kg of potassium sulfate compound fertilizer. The fertilization method is the same for the first time. In the full fruit period, spraying fertilizer can be used in combination with spray spraying, and potassium dihydrogen phosphate, glutinous liquid fertilizer and superphosphate can be sprayed, which is beneficial to the coloration and quality improvement of fruits.

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