Bell pepper needs fertilizer characteristics
The growth period of sweet peppers is long, but the root system is not developed, the amount of roots is small, the soil is shallow, and it is not drought tolerant. It needs more fertilizer than tomato and eggplant, and it has strong fertilizer-resistance. For every 1 ton of sweet pepper produced, the nutrient uptake is: N4.91 kg, P2O51.19 kg, K2O6.02 kg. Its absorption ratio is 1:0.2:1.2. The absorption of nutrients by sweet pepper increases with the growth and development of vegetables. When it is served as a commercial vegetable, the absorption of nutrients increases rapidly from the fruit harvesting stage to the harvesting period, and during the first 30 to 40 days of the harvesting period, The absorption amount is about 60% to 80% of the total absorption until the end of the harvest, and the daily absorption is generally stable. However, when the seeds are cultivated, the maximum amount of absorbed fruit is the rapid development period of the fruit. After that, the nutrients transfer to the fruit seeds, and the absorption rate drops rapidly.
Compared with tomatoes and eggplants, the requirement of sweet peppers is similar to that of the eggplants, which is also the highest amount of potassium absorption, followed by nitrogen and phosphorus. Sweet pepper in vegetables is a high nitrogen, phosphorus, high potassium type, the total amount of fertilizer required is more. Therefore, in production, we must pay attention to the full supply of nitrogen, phosphorus, and potassium in order to increase the leaf area, increase the photosynthetic capacity of the leaves, and coordinate vegetative growth with reproductive growth. This will not result in the formation of small old seedlings caused by vegetative growth stagnation. Also, it will not form crazy stalks of stems and leaves, which will result in fruit drop, which can significantly increase production. Especially when harvesting tender fruits, it is more reasonable to increase the level of potassium nutrition and make the ratio of nitrogen and potassium equal to 1 or slightly greater than 1. It is of great significance to improve fruit quality, including commodity quality and nutritional quality. In addition, the calcium nutrition of sweet pepper should not be ignored, once the calcium deficiency is easy to make the fruit umbilical rot, resulting in greatly reduced fruit quality.
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