What should I do if the beans drop flowers and pods?

It is very difficult to manage beans in planting and production, it is very easy to grow and difficult to set pods, and there may be the phenomenon of falling flowers and pods, which affects the yield of beans and directly affects the income of farmers. So what should we do about beans falling flowers and pods? Let's learn more about the details.

1. Cause of occurrence

The ① temperature is too low or too high. If the temperature is higher than 35 degrees or lower than 15 degrees during the flowering period, it will affect the flower bud differentiation of the plant, make the flower organ dysplastic and form sterile flowers, so it will lead to falling flowers and pods.

② is deficient in nutrition. In the flowering and podding stage, flowers and pods need sufficient nutrients to grow, and if the plants are not nutritious enough and flowers and pods compete with each other for nutrients, flowers and pods will drop flowers and pods because of uneven nutrient distribution.

③ is zinc deficient. In bean plants, gibberellin synthesis decreased due to zinc deficiency, while petioles and fruit stalks detached due to lack of auxin.

④ humidity is too high or too low. Humidity will also affect the pollen court, especially in the environment of high temperature and humidity, which will make the style mucus lose the effect of inducing pollen germination.

⑤ is lack of light and poor ventilation. Beans are sensitive to light intensity during growth, especially after flower bud differentiation, when the light is weak, the number of flowers and pods will increase, and poor ventilation will also cause flowers and pods to fall.

2. Preventive measures

① selected improved varieties and sowed seeds at the right time. Before planting, the excellent varieties with wide adaptability, strong stress resistance and high pod setting rate were selected. in addition, according to the local climatic conditions, a bean could be sown at the time when the high temperature season could be avoided.

② reasonable close planting. Intercropping or scaffolding can be used when planting to create a well-ventilated and transparent environment, which can improve lighting, ventilation and reduce air humidity.

③ strengthens fertilizer and water management. Reasonable application of nitrogen, phosphorus and potassium fertilizer and other trace elements should follow the principles of light application before flowering, more application after anthesis and repeated application at the peak pod setting stage.

④ was sprayed with foliar fertilizer. In the flowering and podding period, a large number of old leaves will appear in the plant, so it is necessary to spray foliar fertilizer containing zinc in time to speed up the synthesis of gibberellin so as to avoid premature senescence.

The above is the introduction of how to drop beans and pods. I hope it can help you. If you want to know more about it, please follow us.