What are the causes of deformed kidney beans and how to solve them?

Kidney beans are the common green beans in our daily life and one of the vegetables people enjoy more, but when growing them, kidney beans often produce deformed pods, generally showing a curved hook shape. What is going on here, and what causes it? Let's take a look together with the editor.

1. Spraying allergenic chemicals

When growing kidney beans, in order to promote growth or prevent and control pests and diseases, more or less some chemicals must be sprayed, but kidney beans are sensitive to chemicals such as mancozeb, zineb or diethofencarb, and if these chemicals are applied in excess, the pods will become curved. In addition, kidney beans are also quite sensitive to oxadixyl, are very prone to damage, and form deformed fruit; it is also possible that spraying copper preparations or anthracnose fumei caused chemical injury, with mild cases causing the price to be completely deformed, and severe cases causing flower and pod drop.

Solution: When preventing and controlling pests and diseases, chemicals such as iprodione, procymidone, chlorothalonil, vinclozolin, iminoctadine, and carbendazim can be used, and chemicals containing mancozeb, zineb or diethofencarb should be used as little as possible or not at all.

2. Boron deficiency

Boron is an important element affecting the pod-setting rate and yield of kidney beans. During the flowering and pod-setting period, if boron is deficient, the pod-setting rate is low; even if pods set, the flowers are large and the pods are long, the pods are prone to bending, and their market quality is low.

Solution: The best method is to apply a small amount of boron fertilizer when applying base fertilizer, or spray borax solution 1-2 times before kidney beans flower, which can quickly supplement the plant's boron element.

3. Temperature

During the pod growth period, if the temperature is too high or too low, the pods will grow curved and become deformed. The suitable growth temperature for kidney beans during the day is 23-25 degrees, and the suitable growth temperature at night is around 18, while the temperature during the flowering period is best at 23 degrees. If the daytime temperature is lower than 20 degrees or higher than 30 degrees, its flowering and pod-setting rate is relatively low.

Solution: Be sure to pay attention to temperature during the flowering period. If the temperature is too high, ventilate promptly to lower the temperature; if the temperature is too high, close the greenhouse promptly to increase the room temperature.

4. Moisture

When planting, soil that is too dry or has too much accumulated water can cause the newly set pods to become deformed. This is because soil that is too dry or too wet affects root growth, causing the plant to grow weakly, thereby affecting flowering and pod setting.

Solution: If you want the plant to set pods without deformity, you must ensure that the plant's root system grows robustly. Generally, watering should be determined according to soil moisture conditions. Generally, do not water before flowering; after pod setting, water together with fertilization. When watering, use small drip irrigation, and avoid flood irrigation, so as not to cause root rot.

The above are the causes of deformed kidney beans and the solutions, hoping it can help you. To learn more related knowledge, please follow us.