What to Do About Flower and Pod Drop in Adzuki Beans? A Full Analysis of the Latest Control Measures

During the cultivation of adzuki beans, flower and pod drop often occurs, which has a decisive impact on a high yield of adzuki beans. However, flower and pod drop can be avoided. Below, the editor brings you the control techniques for flower and pod drop in adzuki beans. Let's take a look together.

1. Topdressing According to Soil Conditions

Flower and pod drop in adzuki beans may be caused by insufficient nutrients during the flowering and pod-setting period, which prevents the rows from closing. Therefore, a fertilizer application can be made at the early flowering stage of adzuki beans to supplement nutrients and reduce flower and pod drop. Generally, apply 5 kg of urea or 10 kg of ammonium sulfate per mu. Pay attention to the method when fertilizing; it should not come into direct contact with the root system to avoid burning.

2. Foliar Fertilization

In addition to normal root fertilization, foliar fertilization can also be used. During the flowering and pod-setting period, generally mix 0.5 kg of urea, 1.5 kg of superphosphate, 0.25 kg of potassium sulfate, and 25 g of borax per mu with 50 kg of water. After extracting the leachate, spray it onto the leaves with a sprayer. Foliar fertilizer spraying should preferably be done on cloudy days or after 4 p.m. on sunny days, which helps preserve flowers, increase pods and grains, reduce shriveled grains, and increase single-grain weight. Foliar fertilization can be combined with pest and disease control to improve labor efficiency.

3. Chemical Regulation

Soybeans can use paclobutrazol to strengthen plants, increase branching, shape an ideal plant type, and increase yield. Adzuki beans can also use paclobutrazol for chemical regulation to reduce flower and pod drop. Generally, at the early flowering stage, spray 20 g of 15% paclobutrazol mixed with 50 kg of water. This can improve the soybean plant type, extend the functional period of leaves, improve field ventilation and light transmission conditions, and optimize the soybean growing environment, thereby promoting growth and reducing drop.

4. Pay Attention to Drought Prevention and Drainage

From before flowering to the pod-setting stage, adzuki beans are in the period of fastest water uptake during the entire growth period. At this time, if soil moisture is too low, it will affect bean grain expansion, so timely irrigation is needed. Generally, irrigate once every 5-7 days, with 2-3 consecutive irrigations. Remember not to use flood irrigation. Adzuki beans are a crop with relatively poor waterlogging tolerance, and standing water can easily cause flower and pod drop, so pay attention to drainage to avoid waterlogging damage.

The above is an introduction to the control measures for flower and pod drop in adzuki beans. We hope it can help you. For more related knowledge, please stay tuned to us.