Soybean has few flowers, sparse pods and even no pods. How to improve the pod setting rate of soybean?

Soybean pods do not bear pods, or bear fewer pods, which has a direct impact on yield. Below, the little helper will tell you how to improve the pod setting rate of soybeans, thus increasing the yield. There are mainly the following five points:

1, attention should be paid to variety selection.

First of all, we should pay attention to varieties, choose varieties suitable for local cultivation, such as temperature, humidity, growth period and a series of conditions, try not to choose varieties that have not been planted locally, even if the publicity is very strong, don't buy them in the first year, and plant new varieties after other friends try. In addition, in terms of stress resistance (drought resistance, insect resistance, etc. ), selecting stronger varieties is beneficial to the normal growth of soybean in the later stage.

2. The planting density should not be too dense.

The planting density of soybeans should not be too close (not only soybeans, but also other crops). If it is too dense, the leaves will cover each other during flowering and pollination, which will affect the normal photosynthesis, thus affecting flowering and pollination and reducing the pod setting rate. In addition, if it is too dense, it will weaken field ventilation and affect root growth. Under a series of harsh conditions, soybean will not pod well, which will affect the yield.

3. Keep up with water resources management.

No matter spring sowing or summer sowing, soybeans will encounter long-term high temperature weather. At this time, if the soil moisture in the field is not good and too dry, the growth of soybean will stagnate. If there is drought before and after flowering and pollination, will the pod setting rate be high? Similarly, summer is also a rainy season. If it rains continuously and there is water in the field, the pod setting rate will be too low if it is not eliminated in time. Because of the setback of root growth, the whole soybean plant could not grow normally. Therefore, water management is very important, and everyone should pay attention to it.

4, fertilizer management should pay attention to

Don't raise soybeans with other crops, and don't use too much nitrogen fertilizer, because soybeans can produce rhizobia and supply nitrogen by themselves. If nitrogen fertilizer is applied blindly and other elements are too few, it will also lead to uneven nutrient supply and lower pod setting rate. Soybean can generally follow a fertilization principle of "appropriate application of nitrogen fertilizer, increased application of organic fertilizer, application of phosphorus, potassium fertilizer and trace fertilizer". Please pay attention.

5, pest control

Diseases and insect pests have a great influence on the normal growth of soybean, especially in flowering period, such as stem borer, leaf roller, snail, downy mildew and so on. If it is not prevented in time, the pod setting rate of soybean will also decrease. If it is prevention, only chemicals are mentioned here. For pests, the commonly used chemicals are beta-cypermethrin and chlorpyrifos, and for downy mildew, the available chemicals are metalaxyl, manganese zinc and chlorothalonil.