Tomato pollution-free fertilization technology

Tomato is a fertilizer-tolerant plant. It must have sufficient fertilizer. At the same time, it should be combined with nitrogen, phosphorus and potassium. Especially in the fruit setting period, the application of potassium fertilizer should be strengthened, which can effectively improve the quality of tomato.
1. Tomato's demand for nitrogen, phosphorus and potassium fertilizer:
Nitrogen: Nitrogen-like nitrogen promotes vegetative growth, flower bud differentiation, and fruit development.
Phosphorus: promotes root growth, has obvious effects on flower bud differentiation, accelerates flowering and results, and improves yield and quality.
Potassium: Improves disease resistance, promotes the operation of organic matter, and makes the fruit evenly colored.
Calcium: Increases the sugar content, which is insufficient to cause umbilical rot.
2. Tomato pollution-free fertilization technology:
The target output is 4000-5000 kg. For medium fertility soils, the production of 1000 kg of tomatoes requires 3.85 kg of pure nitrogen, 1.2 kg of phosphorus pentoxide, and 4.4 kg of potassium chloride. (1:0.31:1.14).
Base fertilizer: 667m2 high-quality farmyard manure 3000-3500kg (or commercial organic fertilizer 1000-1200kg), special BB fertilizer for eggplants 30-35 kg, deep into the soil after two weeks of application.
Top dressing: 5-6 kg of urea per 667 m2 of the first panicle expansion period; 7-8 kg of urea per 667 m2 of the second panicle expansion period; 10-15 kg of compound fertilizer per 667 m2 of the third panicle expansion period.
According to the growth situation combined with disease prevention medication, spray foliar fertilizer or liquid fertilizer irrigation roots.

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