How to control soybean pods without fruit and affect soybean yield

The phenomenon of big pods and unfruitful pods often occurs in summer beans for many reasons, such as improper use of nitrogen, phosphorus and potassium fertilizers, differences in varieties, excessive density, lack of trace elements, harm to diseases and insect pests, etc., all of which can cause the seeds of soybean to bulge and form blighted pods. The Green Food Network recommends that you prevent summer bean pods in production from the following aspects:

soybean

1. Increase the application of organic fertilizer and phosphorus and potassium fertilizer to soybean. Single use of nitrogen fertilizer, easy to appear crazy growth phenomenon, resulting in pods and unfruitful. Be sure to apply a certain amount of organic fertilizer and ternary compound fertilizer to summer soybeans after emergence. In the fields where soybean pods are seriously unfruitful, more phosphorus and potassium fertilizers should be applied to reduce blighted pods.

2. Spraying foliar fertilizer. Boron-deficient soybeans are prone to pods and sterile seeds. 0.1% Mel 0.2% borax and 0.5% Mel 1% urea solution should be sprayed every 10 days after the early flowering stage of soybeans, and the soybeans at full flowering stage should be sprayed with 0.2% Mel 0.5% potassium dihydrogen phosphate, which can not only prevent soybean plants from losing fat, but also prevent blighted pods. Choose to spray foliar fertilizer on a windless cloudy or sunny afternoon, mainly spraying the back of the leaves.

3. Rational irrigation. If the soybean in the flower and pod filling stage encounters insufficient soil moisture and drought, it should be irrigated in time to prevent drought in order to meet the water demand of soybean in the seed filling stage and reduce the blighted pod.

4. pay attention to the prevention and control of diseases and insect pests. Attention should be paid to the occurrence of soybean aphids from the seedling stage, and the control should be early. Soybean at flowering and pod stage should pay special attention to diseases and insect pests such as downy mildew, gray spot, soybean heart-eating insect, pod borer and diamondback moth, so as to improve the pod setting rate.

5. Crop rotation. Avoiding continuous cropping of soybean can prevent the imbalance of nutrients in the soil, reduce the harm of diseases, pests and weeds to soybean, and reduce the rate of empty grain.