The soil testing and formula fertilization in the greenhouse is the main method of scientific fertilization. It is simple, convenient, labor-saving, labor-saving and fertilizer-saving. It is easy for farmers to accept and easy to promote. It can not only meet the growth needs of vegetables, improve production, improve quality and color, improve quality, but also is an important method to improve the economic efficiency of vegetable production and develop efficient vegetable production. It is an important technical measure for the development of greenhouse vegetable production.
1. Cucumber Fertilization Technology Cucumber is a kind of high-yield vegetable. It has a long period of fruiting, and it needs long-term nutrition to meet the needs of growth and development. It should be topdressed in time. The production of 1000 kg of cucumber requires 2.6 kg of pure nitrogen, 1.5 kg of phosphorus pentoxide and 3.5 kg of potassium oxide. The production of 5000-7000 kg per mu requires 13 to 19.5 kg of pure nitrogen, 7.5 to 11.25 kg of phosphorus pentoxide, and 17.5 to 26.25 kg of potassium oxide. Before the cucumber is planted, it should be 5,000 to 7,500 kilograms of high-quality organic fertilizer, 15 to 20 kilograms of phosphorus and potassium fertilizer, and then 1 time of fertilizer every 7 to 10 days, combined with watering. The whole cucumber was topdressed 8 to 10 times during the growth period. Foliar spray can also be carried out according to the concentration of 0.3% chemical fertilizer and the growth hormones such as pesticide or spray Shibao, Zengjialing and Fengguo.
2, tomato fertilization technology Tomatoes are high-yield fruits and vegetables, the yield per mu can reach more than 5,000 kg. 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 oxide. According to the calculation of 5000 kg per mu, 5000 kg of high-quality farmyard manure and 50 kg of phosphate fertilizer should be applied before planting. When the first ear is swollen to the size of egg yolk, the first top dressing should be carried out. The fertilizer should be applied with 18-20 kg of nitrogen fertilizer, 15-16 kg of phosphate fertilizer, 16-17 kg of potassium fertilizer, and the second, third and fourth ear fruits will be expanded to egg yolk. In large hours, the fertilizer should be applied in time and in a timely manner. At this time, the amount of fertilizer needed should be large, and the amount of topdressing should be increased appropriately. Each top dressing should be combined with watering. It is also possible to use a 0.3% chemical fertilizer combined with a disease-preventing drug for foliar application, or a mixture of sitting fruit and fruit.
3, pepper fertilization technology Whether it is big sweet pepper or small pepper, the yield per mu can reach 5000 ~ 7500 kg, the production of 1000 kg requires 5.2 kg of pure nitrogen, 1.2 kg of phosphorus pentoxide, 6.5 kg of potassium oxide. Before planting, 5,000 kg of high-quality farmyard manure and 50 kg of phosphate fertilizer were used as base fertilizer. In the early stage of root pepper expansion, the first top dressing should be started to promote fruit enlargement. The application of nitrogen fertilizer is 15-18 kg, the phosphate fertilizer is 18-20 kg, and the potassium fertilizer is 15-17 kg. The amount of fertilizer needed for the second layer, the third layer, the fourth layer of fruit, and the full star will increase gradually, and the amount of fertilizer should be increased in an appropriate amount to meet the nutrients required for the peak period. Each time the top dressing should be combined with soil and watering. Anti-insect and anti-disease drugs can also be mixed with 0.3% of chemical fertilizer concentration, Fengguo, Chiling, etc. for foliar application.
4, celery fertilization technology Celery is the production of stem-leaf-based green vegetables, high yield, up to 5000 ~ 7500 kg per acre, need more nutrients. The production of 1000 kg of celery requires 2 kg of pure nitrogen, 1 kg of phosphorus pentoxide, and 4 kg of potassium oxide. 5,000 kg of celery is produced in acre, and 5000 kg of high-quality farmyard manure and 40 kg of phosphate fertilizer should be applied before planting. When the plant growth height is 10 cm, the first top dressing should be started, and the nitrogen fertilizer should be applied 7-10 kg of nitrogen fertilizer and 10-15 kg of potassium fertilizer. Celery enters the vigorous growth period, requires nutrient increase, chasing fertilizer once every 7 to 10 days, a total of 3 to 4 times, each time applying 15 to 20 kg of nitrogen fertilizer, 10 to 20 kg of phosphate fertilizer, 20 to 25 kg of potassium fertilizer. Each time the top dressing should be combined with watering. It can also be combined with anti-disease drugs to add 0.3% chemical fertilizer concentration and spray Shibao for foliar application.
1. Cucumber Fertilization Technology Cucumber is a kind of high-yield vegetable. It has a long period of fruiting, and it needs long-term nutrition to meet the needs of growth and development. It should be topdressed in time. The production of 1000 kg of cucumber requires 2.6 kg of pure nitrogen, 1.5 kg of phosphorus pentoxide and 3.5 kg of potassium oxide. The production of 5000-7000 kg per mu requires 13 to 19.5 kg of pure nitrogen, 7.5 to 11.25 kg of phosphorus pentoxide, and 17.5 to 26.25 kg of potassium oxide. Before the cucumber is planted, it should be 5,000 to 7,500 kilograms of high-quality organic fertilizer, 15 to 20 kilograms of phosphorus and potassium fertilizer, and then 1 time of fertilizer every 7 to 10 days, combined with watering. The whole cucumber was topdressed 8 to 10 times during the growth period. Foliar spray can also be carried out according to the concentration of 0.3% chemical fertilizer and the growth hormones such as pesticide or spray Shibao, Zengjialing and Fengguo.
2, tomato fertilization technology Tomatoes are high-yield fruits and vegetables, the yield per mu can reach more than 5,000 kg. 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 oxide. According to the calculation of 5000 kg per mu, 5000 kg of high-quality farmyard manure and 50 kg of phosphate fertilizer should be applied before planting. When the first ear is swollen to the size of egg yolk, the first top dressing should be carried out. The fertilizer should be applied with 18-20 kg of nitrogen fertilizer, 15-16 kg of phosphate fertilizer, 16-17 kg of potassium fertilizer, and the second, third and fourth ear fruits will be expanded to egg yolk. In large hours, the fertilizer should be applied in time and in a timely manner. At this time, the amount of fertilizer needed should be large, and the amount of topdressing should be increased appropriately. Each top dressing should be combined with watering. It is also possible to use a 0.3% chemical fertilizer combined with a disease-preventing drug for foliar application, or a mixture of sitting fruit and fruit.
3, pepper fertilization technology Whether it is big sweet pepper or small pepper, the yield per mu can reach 5000 ~ 7500 kg, the production of 1000 kg requires 5.2 kg of pure nitrogen, 1.2 kg of phosphorus pentoxide, 6.5 kg of potassium oxide. Before planting, 5,000 kg of high-quality farmyard manure and 50 kg of phosphate fertilizer were used as base fertilizer. In the early stage of root pepper expansion, the first top dressing should be started to promote fruit enlargement. The application of nitrogen fertilizer is 15-18 kg, the phosphate fertilizer is 18-20 kg, and the potassium fertilizer is 15-17 kg. The amount of fertilizer needed for the second layer, the third layer, the fourth layer of fruit, and the full star will increase gradually, and the amount of fertilizer should be increased in an appropriate amount to meet the nutrients required for the peak period. Each time the top dressing should be combined with soil and watering. Anti-insect and anti-disease drugs can also be mixed with 0.3% of chemical fertilizer concentration, Fengguo, Chiling, etc. for foliar application.
4, celery fertilization technology Celery is the production of stem-leaf-based green vegetables, high yield, up to 5000 ~ 7500 kg per acre, need more nutrients. The production of 1000 kg of celery requires 2 kg of pure nitrogen, 1 kg of phosphorus pentoxide, and 4 kg of potassium oxide. 5,000 kg of celery is produced in acre, and 5000 kg of high-quality farmyard manure and 40 kg of phosphate fertilizer should be applied before planting. When the plant growth height is 10 cm, the first top dressing should be started, and the nitrogen fertilizer should be applied 7-10 kg of nitrogen fertilizer and 10-15 kg of potassium fertilizer. Celery enters the vigorous growth period, requires nutrient increase, chasing fertilizer once every 7 to 10 days, a total of 3 to 4 times, each time applying 15 to 20 kg of nitrogen fertilizer, 10 to 20 kg of phosphate fertilizer, 20 to 25 kg of potassium fertilizer. Each time the top dressing should be combined with watering. It can also be combined with anti-disease drugs to add 0.3% chemical fertilizer concentration and spray Shibao for foliar application.
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