Soybean cultivation: why do soybeans produce blighted grains?

Why do soybeans produce blighted grains? How to prevent blighted soybeans? Please introduce that the blighted grain of soybean is mainly caused by the decline of leaf function, resulting in the lack of photosynthate, or the lack of water, which hinders the transport of nutrients. In the later growth stage of soybean, the decline of various physiological functions is inevitable, but if the nutrition and water supply is insufficient, the decline will be too early and too fast, the matter needed for grains will be seriously insufficient, and some grains will stop developing and become blighted grains. In addition, when the soil is fertile, the base fertilizer and seed fertilizer are sufficient, the early growth of soybean is too prosperous and the plant is luxuriant, overgrowth and lodging also result in blighted grains. Soybean blighted grain control methods: 1. Attention should be paid to the late field management to prevent the damage of diseases and insect pests to the plant. 2. 2. Irrigation and drainage should be done well in time according to climatic conditions and soil moisture conditions. In the period of flowering and podding, soybean should be irrigated in time if it is dry, and if it is rainy, it should be drained in time. 3. Replenish nutrients in time. The period of soybean flowering and podding and grain formation is the peak of soybean fertilizer demand, so the insufficient supply of nitrogen and phosphorus fertilizer will make soybean grow slowly, blossom and pod late, bulge slowly and have more blighted grains. Therefore, foliar fertilizer spraying should be carried out at this time, the fertilizer effect is fast and the effect is good. Generally, 200 grams of potassium dihydrogen phosphate, 50 grams of ammonium molybdate, 50 tons of water and 60 kilograms of water are sprayed evenly on each mu of land, which can increase soybean yield by more than 10%. At this time, if the leaves are light yellow, add 500 grams of urea, mixed spraying, the effect is better. The role of Soybean coring in the method of increasing yield of cultivated Soybean Click to get more Soybean planting techniques