With the recent increase in temperature and enhanced light, greenhouse peppers in many areas have prolonged to varying degrees. The main manifestations are long internodes, less flowering, and severe fruit loss. The following are the reasons for the long peppers. The reasons for prolonged growth should be judged according to the following reasons, in order to effectively control the growth of peppers and increase the rate of peppers.
1. Temperature problem: The temperature requirement of pepper is not too high, but the high temperature at night often causes prolongation. The pepper is slowed from seedling to flowering. The suitable temperature during the day is about 26 °C, and the night is about 16 °C. At around 28 °C, the maximum should not exceed 32 °C.
Control methods: increase the wind output, reduce the greenhouse temperature, and avoid the emergence of hot peppers in the greenhouse.
2. Watering problem: The root system of pepper is weak. If it is too dry or too much, it will affect the growth of its root system. As the temperature increases, the evaporation will increase. Farmers will increase the amount of water to relieve the symptoms. Large or excessive, the soil moisture is increased, and the humidity is often caused by serious fruit drop.
Control method: should be poured in small water, keep the soil dry and see wet.
3. Excessive density or excessive application of nitrogen fertilizer: The suitable density of pepper is 2200-2400 plants/mu. If the density is too large, it will cause prolongation. In addition, the demand for potassium fertilizer is higher. Therefore, avoid excessive application of nitrogen fertilizer when applying fertilizer. Apply high potassium fertilizer to avoid plant growth due to high nitrogen.
Control methods: reduce the use of nitrogen fertilizer, increase the application of phosphorus and potassium fertilizer and fulvic acid organic fertilizer to avoid the long-term growth of pepper due to partial application of nitrogen fertilizer.
4. According to the seedlings, the pepper is taken: in the process of pepper production, the farmers often consider the idea that the mother has no big fruit and no big fruit, and it is easy to remove the door pepper and regulate the growth of the plant, so the door is taken according to the seedling condition. Pepper, regulate plant growth.
Control method: According to the plant condition, adjust the growth of pepper to avoid prolonged due to excessive picking.
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