The production of 1,000 kilograms of tomatoes requires 3.85 kilograms of pure nitrogen, 1.2 kilograms of phosphorus pentoxide, 4.4 kilograms of potassium chloride, and 5,000 kilograms per kilogram per mu. Before planting, 5000 kilograms of high-quality farmyard manure and 50 kilograms of phosphate fertilizer are planted. When the first ear is enlarged to the size of the egg yolk, the first top dressing should be carried out, and the top dressing of pure nitrogen is 18-2 kg of topdressing fertilizer, 15-16 kg of phosphate fertilizer, and 16-17 kg of potassium fertilizer. The second, third, and fourth ear fruits are enlarged to When the size of egg yolk is large, fertilizers should be top-dressed in a timely manner. At this time, the amount of fertilizer required is large, and the amount of top-dressing fertilizer should be appropriately increased. Each top dressing should be combined with watering. Can also be used 0.35% of the concentration of chemical fertilizers combined with disease prevention drugs or with Tianfeng Suo, feng 481 and other growth hormone mixed foliar spray.
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