The latest causes of blighted soybean grains and its control methods

Soybean often has incomplete grain development after maturity, even only one empty shell phenomenon, such beans are called blighted grain or deflated grain, blighted grain will be cultivated to yield some. So what is the cause of soybean grain? How to prevent it? Let's take a look at the detailed introduction.

1. Causes of grain failure

The main reason for the appearance of blighted soybean seeds was that the function of leaves gradually declined, resulting in less nutrients synthesized by photosynthesis, and blighted soybean seeds appeared because of insufficient nutrients. Or because of lack of water, resulting in nutrient transport is hindered, can not be transported to the beans in time. Moreover, soybean in the late growth period, to the seed physiological function decline inevitable reasons, but if the fertilizer water for a lifetime, will accelerate the decline phenomenon, leading to serious grain nutrition minister, will stop development caused by grain. In addition, planting in fertile and loose soil, sufficient base fertilizer, soybean early growth will be too prosperous, excessive growth or lodging phenomenon will also lead to late appearance of grain, there are diseases and insect pests will also appear grain.

II. Control methods

1, first of all, according to the soil moisture conditions and climate conditions, timely irrigation or drainage, in the big bean pod period if the drought climate should be timely drainage, but it is strictly prohibited to flood irrigation, and if the rainy weather should be timely drainage, so as not to accumulate water to rot roots. In addition, after watering or rain, proper intertillage can be carried out to loosen the soil, increase soil permeability, avoid soil hardening after watering, and promote soybean root growth and enhance absorption capacity.

2. The peak period of soybean fertilizer requirement is at the flowering and pod stage and seed formation stage. If the supply of nitrogen and phosphorus is insufficient, it will lead to slow growth, prolonged flowering and pod stage and more blighted seeds. So at this time to timely fertilization, in order to quickly supplement the nutritional needs of plants, you can use foliar spraying method, generally with 200 grams of potassium dihydrogen phosphate per mu, ammonium molybdate 50 grams, 50 - 60 kg of water, uniform spraying foliar, can increase production by more than 10%.

3. Pay attention to the prevention and control of diseases and insect pests, strengthen field management, increase the application of organic fertilizer or phosphorus and potassium fertilizer, enhance the disease resistance of plants, and prevent diseases and insect pests in time to avoid affecting the yield.

The above is the introduction of soybean grain causes and control methods, I hope to help you, want to know more about the relevant knowledge, please pay attention to us.