Causes and control measures of soybean pods not full

Soybean is an important food crop in China, but the phenomenon that soybean pods are not full often occurs in the process of planting, which seriously affects the yield and quality of soybean. So what is the reason why the big pods are not full? How to prevent and cure it? Let's get to know it with the editor.

First, the reason why the soybean pod is not full

1. Lack of nutrition in the later stage

Soybean consumes a lot of nutrients after anthesis, so if it is not fertilized in time, it will lead to insufficient nutrition after full flowering, yellowing leaves, dwarfing plants and unfruitful pods.

2. Malnutrition

Excessive application of nitrogen fertilizer during fertilization will lead to imbalance of carbon-nitrogen ratio, which will lead to higher plants, longer internodes, luxuriant branches and leaves, sparse flowers and pods, forming empty pods and semi-shrunken pods, and the ripening period of beans will be delayed.

3. Long-term drought

In the case of soybean flowering, when it is dry for a long time, the soybean leaves will wither and turn yellow, and the pods will stop growing and even the whole plant will die. in the land with shallow tillage layer and lack of water, the soybean pods are more serious.

4. Chilling injury

For late-sowing or late-maturing varieties, from late September to early October, the land is still flowering, because the autumn temperature drops, leaf photosynthesis weakens, and the development of young pods stops, resulting in pods that are not full.

5. Diseases and insect pests

Summer and autumn is the peak of soybean virus disease, which will make leaves wrinkle, young pods deformed, and soybean heart-eating insects cause empty pods.

6. Disharmony between light and temperature

In the low altitude area, under the condition of long-day sunshine and high temperature from July to August, long-day sunshine delayed the development of soybean seeds, while high temperature promoted the rapid development and aging of pods, resulting in many flowers and pods but not fruit.

II. Prevention and control measures

First of all, according to the climatic characteristics of different regions, we should select suitable varieties to strive for high yield, and then select suitable varieties according to the changes of light and temperature in different regions. It is necessary to strengthen field management and water timely and appropriately during drought to meet the water demand of soybean growth and development. In order to change the habit of planting soybean without fertilization, scientific formula fertilization should be carried out according to the law of soybean fertilizer demand. if there is a lack of fertilizer in the middle and later stage, foliar fertilizer can be sprayed to supplement nutrients to avoid lack of premature senility. Pay attention to the prevention and control of diseases and insect pests, find timely prevention and control of diseases and insect pests, so as to avoid the spread of the disease.

The above is the introduction of prevention and control measures for soybean pods that are not full. I hope it can help you. If you want to know more about it, please follow us.