How to improve the fruit-setting rate of bell peppers? An introduction to the latest methods

Bell peppers often run into the problem of a poor fruit-setting rate, with flower and fruit drop, causing an imbalance between vegetative growth and reproductive growth, excessive plant growth, and a serious reduction in yield. Many farmers believe that controlling water and fertilizer can curb excessive growth, but the result is that the plants grow more and more vigorously and fruit setting becomes more and more difficult. So how can the fruit-setting rate of bell peppers be improved? Follow the editor and take a look.

1. Cooling and ventilation

When the temperature is above 32°C, flower and fruit drop occurs, which seriously affects the fruit-setting rate of bell peppers. Therefore, at noon during high temperatures, ventilation should be strengthened, while shade nets should be used for shading, or spraying can be used to lower the temperature. This can reduce flower and fruit drop and, to a certain extent, improve the fruit-setting rate.

2. Regulating humidity

Humidity is also fairly important for pollination and fertilization in bell peppers. Generally speaking, the suitable air humidity for bell peppers is around 70%-80%. During the peak period of flowering and fruit setting, humidity that is too low or too high will affect normal pollination and fertilization. So when the humidity is too low, a sprayer can be used to spray clean water on the leaves to increase air humidity; if the humidity is too high, then ventilation is needed to remove moisture.

3. Reasonable fertilization

Boron and phosphorus are important for promoting flower bud differentiation and improving the fruit-setting rate, so in the early stage of flowering and fruit setting, 600-fold borax solution or 1200-fold Sulubor (fast-acting boron) can be sprayed on the leaves to supplement boron fertilizer. Applying potassium fertilizer by irrigation can improve the plant's drought resistance and heat resistance. In addition, during the peak fruiting period, calcium fertilizer can be added at a concentration of about 0.5%, or 5-8 kg of calcium nitrate per mu can be applied with irrigation water. This can not only enhance plant resistance and improve pollination performance, but also improve fruit quality and prevent physiological diseases such as blossom-end rot, sunscald, and bud blight.

4. Applying growth regulators

When the plants show excessive vegetative growth, 750-fold chlormequat solution plus 30 ppm naphthaleneacetic acid can be sprayed on the leaves for control, or 800-1000-fold Aiduoshou solution can be sprayed to promote the shift from vegetative growth to reproductive growth. In the early stage after planting, fertilizer and water management need to be strengthened so that the plants become strong. When excessive growth occurs and fruit is not set, root drenching or applying Guobeier or Yiguosu with irrigation water in a timely manner can significantly enhance the plant's natural fruit-setting rate.

5. Controlling pests and diseases

Pests and diseases can also make fruit setting difficult in bell peppers, so timely spraying is needed for control. Beta-cypermethrin, imidacloprid, and other pesticides can be sprayed to control pests such as tobacco budworm, cotton bollworm, aphids, and red spiders. Common diseases include viral disease, anthracnose, and soft rot, and once they are found, the right remedy should be applied promptly.

  The above is an introduction to how to improve the fruit-setting rate of bell peppers. We hope it can help you. To learn more related knowledge, please keep following us.