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2. tomato. The production of 1,000 kilograms of tomatoes requires 3.85 kilograms of pure nitrogen, 1.2 kilograms of phosphorus pentoxide, and 4.4 kilograms of potassium chloride. Calculated according to 5,000 kilograms per mu, 5000 kilograms of high quality farmyard manure and 50 kilograms of phosphate fertilizer are planted before planting. When the first ear is enlarged to the size of the hen's egg, the first top-dressing should be performed. The top-dressing pure nitrogen is 18 kg - 20 kg, the phosphate fertilizer is 15 kg - 16 kg, and the potassium fertilizer is 16 kg - 17 kg, the second and third. When the four ear fruit enlarges to the egg yolk size, fertilizer should be top-dressed in a timely manner. At this time, the amount of fertilizer required is larger, and the amount of topdressing fertilizer should be increased appropriately. Each time you are forced to combine watering. Can also be used 0.35% of the concentration of chemical fertilizers combined with disease prevention medication, spraying the leaves, but also can be mixed with the set fruit Ling, Fengguo mix spray. 3. chili. The production of 1,000 kg requires 5.2 kg of pure nitrogen, 1.2 kg of phosphorus pentoxide and 6.5 kg of potassium chloride. Before planting, 5000 kg of high-quality farmyard manure and 50 kg of phosphate fertilizer were used as base fertilizer. The first time the hot pepper expands, the first time the top dressing is started to promote fruit enlargement. Mu topdressing pure nitrogen 15 kg - 18 kg, phosphate fertilizer 18 kg - 20 kg, potassium 15 kg - 17 kg. The second layer of fruit, the third layer of fruit, the fourth layer of fruit, and the amount of fertilizer required by the gypsophila are increased one by one. Each time, the amount of topdressing should be increased appropriately to meet the nutrients required for the result. Every time dressing topdressing should be combined with soil and watering. Can also be mixed 0.3% of the fruit, pepper spirit, etc. for foliar spray.
4. celery. The production of 1000 kg of celery requires 2 kg of nitrogen, 1 kg of phosphorus pentoxide, and 4 kg of potassium chloride. Before the planting, 5000 kg of high-quality farmyard manure and 40 kg of phosphate fertilizer were planted. When the height is 10 centimeters, the first time the top dressing is started, the topdressing nitrogen fertilizer is 7 kg - 10 kg, and the potassium fertilizer is 10 kg - 15 kg. The celery enters a vigorous growth period, chasing the fertilizer once every 7 days - 10 days, a total of 3 times - 4 times, topdressing 15 kg nitrogen - 20 kg per acre, phosphate fertilizer 10 kg - 20 kg, potassium fertilizer 20 Kg - 25 kg. Every time you topdress, you should combine watering. Can also be combined with the prevention of disease with 0.3% concentration spray Shi Bao spraying.
5. spinach. Spinach needs to sleep for a long time in winter, so pay attention to fertilization. The production of 1000 kg of spinach requires 1.6 kg of pure nitrogen, 0.83 kg of phosphorus pentoxide, and 1.8 kg of potassium oxide. Before planting, 5000 kg of high-quality organic fertilizer and 40 kg of phosphate fertilizer were used. Sufficient basal fertilizer and strong seedling growth are the key to safe wintering of vegetables. Before wintering, spinach seedlings are about 10 cm high. According to growth conditions, topdressing once over-wintering fertilizer should apply nitrogen fertilizer 10 kg - 15 kg, phosphate fertilizer 10 kg - -15 kg. Be sure to pour frozen water once before winter to prevent death in winter. In the spring of next year, fertilizer should be applied in time. Nitrogen fertilizer should be applied at 20kg-25kg, and phosphorus and potassium fertilizer 15kg--20kg. Every 10 days -15 days to recover the 3rd fertilizer. Spinach dressing should not be spread in the heart of the fertilizer, so as not to cause burning seedlings, each top dressing should be combined with watering. 0.3% foliar fertilizer can also be used for foliar spray. The fertilization techniques for spring spinach and autumn spinach are basically the same as for winter spinach.
Main vegetable formula fertilization
1. cucumber. Cucumber is a kind of high-yielding vegetable, which has a long fruiting period and needs long-term nutrition that meets the needs of growth and development. It should be top-dressed in time. The production of 1,000 kg of cucumber requires 2.6 kg of pure nitrogen, 1.5 kg of phosphorus pentoxide, and 3.5 kg of potassium oxide. Before planting cucumber, Mushi high-quality organic fertilizer 5000 kg -7500 kg, phosphate fertilizer 25 kg -30 kg as a basal. Cucumbers enter the first stage of fruiting melons for the first time dressing, 10kg (-15kg) nitrogen fertilizer and 15kg (-20kg) phosphorus and potassium fertilizers. After that, every 7 days - 10 days followed by 1 fertilizer, combined with watering. The whole cucumber grows up to 8 times - 10 times. Can also be 0.3% fertilizer concentration and pesticide or spray Bao, Zenggualing, Fengguo and other growth hormone mixture for foliar spray.