What about less soybean pods? How to improve the pod setting rate of soybean

Soybean is one of the most important economic oil crops in China. It has been cultivated for 5000 years, but it has few flowers, sparse pods and even no pods. So what about the low soybean pod setting rate? Is there any way to increase the yield? Let's get to know each other.

1. Reasons for less or no pod bearing of soybean

1) Reasons for variety. Some farmers may buy some unqualified seeds, which will lead to the low pod setting rate of soybean.

2) Loss of seeds. Many farmers tend to keep their own seeds, but the seeds are not carefully picked up, the size is different, there are many impurities, if it is mechanical sowing, the seeds may also be lost, and the pod bearing will also be affected to a certain extent.

Not suitable for local cultivation. If the southern variety is planted in the north or the northern variety is planted in the south, the pod setting rate will be low. Because soybean is a short-day plant, if the light temperature can not meet, there will be no pod.

4. Planting too densely. Poor field permeability, leaf interaction, resulting in reduced photosynthesis, soybean will form no pod or less pod situation.

5. Excessive nitrogen application

Soybean root system can produce rhizobia, can supply nitrogen element by itself, when external nitrogen fertilizer is applied too much, it will appear prosperous situation, do not control flourishing in time, will appear greedy green not fruit, do not set pod will appear.

6. The temperature is too high. When the soybean is in the flowering pollination period, the temperature exceeds 35 degrees, which will affect the flowering pollination at maturity, either not bearing pods or bearing pods. The same problem occurs below 15 degrees Celsius.

7. Drought and waterlogging. Soybean is sensitive to water demand before and after flowering. If it is too dry, when the plant is short of water, it will grow slowly and cause difficulty in pod setting. If there is water in the field, the root system cannot breathe normally and the growth is inhibited, it will also cause no pod setting.

8. Diseases and pests. There are not many diseases and insect pests in flowering stage of soybean, mainly pod borer, leaf roller, snail, downy mildew, etc. If the control is not timely, it will also endanger the normal growth of soybean and lead to no pod setting.

II. How to improve the pod setting rate of soybean

First of all, we should pay attention to the selection of varieties. We must choose varieties suitable for local planting, such as temperature, humidity, growth period and so on. Try not to choose varieties that have not been planted locally. Soybean planting should not be too dense, otherwise it will affect its normal photosynthesis during flowering and pollination, resulting in reduced pod setting rate. Soybean water management should keep up with, drought occurs before and after flowering and pollination period, pod setting rate will also decrease, in addition, if it rains continuously in summer, when there is ponding in the field, pod setting rate will also be low. Soybean and other crops fertilization is different, nitrogen fertilizer should not be too much, generally follow the "appropriate application of nitrogen fertilizer, increase the application of organic fertilizer, combined application of phosphorus and potassium fertilizer and micro-fertilizer" fertilization principle. Pests and diseases have great influence on soybean, especially before flowering. If the pest control is not timely, the pod setting rate of soybean will also decrease. Beta-cypermethrin and chlorpyrifos can be used to control pests, and metalaxyl, manganese zinc and chlorothalonil can be used to control diseases.

What if there are fewer soybean pods? How to improve soybean pod rate introduction, hope to help you, want to know more related knowledge, please pay attention to us.