Take more measures to prevent pepper drop
Improve plant lighting conditions. Insufficient illumination is the primary cause of falling flowers and falling fruits in the cloudy sky. Vegetable growers can install special fill light in the shed, fill light when opening the shed during the day, and add a reflective screen on the back wall of the shed to increase the utilization efficiency of scattered light. Enhance the photosynthesis of peppers. More importantly, it is important to do the pruning work in time. The vegetable grower should first loosen the sling of the pepper, increase the opening angle of the pepper branches, strengthen the pruning, remove too many branches, especially the inner lychee, increase the light seeing area of ​​the leaves, reduce the nutrient consumption, and thus increase the pepper The rate of fruit set.
Reduce the humidity in the shed and shake the plants to facilitate pollination. Flowering and pollination of vegetables is also required for humidity. There is less wind in the shed, and the humidity in the shed is too large, which may lead to poor development of pepper pollen, reduced activity, and incomplete pollination. Therefore, in the cloudy day, we should also pay attention to the interval of 12:00 to 2 pm, interval 2-3 times, the air outlet 7-10 cm, each time the air release time is about 15 minutes. In this way, the humidity in the shed can be reduced as much as possible without significantly affecting the temperature inside the shed. At the same time, the vegetable farmers can also take measures to promote the pollen sticking to the stigma of the pistil of the pepper to ensure the completion of pollination.
Foliar supplements. Falling flowers and fruit are serious, and the lack of nutrients is also inseparable. Even when it is cloudy, the vegetable growers can enhance the growth of the pepper by means of foliar fertilizer. Foliar application of foliar fertilizer, such as boron-containing zinc-containing foliar fertilizer and 1000 times of nucleotides mixed with chitin, can supplement energy for pepper and increase plant resistance, thereby reducing flowering due to excessive nutrient consumption. The amount of fruit falling.
When the flowering and falling of the pepper occurs, the plant growth regulator such as naphthaleneacetic acid should be sprayed in time to preserve the fruit, but the amount should not be too large, and the dosage should be controlled between 30-40 mg/kg. After using naphthaleneacetic acid, the leaves of pepper plants will appear 2-3 days of leaf curl and will recover spontaneously after a few days.
In addition, in the prevention and control of pests and diseases, in order to avoid increasing the humidity in the shed, powder or smoke agents should be used. When spraying, choose a good weather in the morning, ventilation to reduce the humidity inside the shed. However, for the peppers that the vegetable farmers have just planted, because the plants have just entered the flowering stage, the flowering and fruit-bearing ability is strong. The vegetable farmers should remove the peppers from the peppers and the peppers, mainly to raise the trees, and to retain the fruits of the peppers above the four-door bucket. This can effectively promote fruit set and increase pepper yield.
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