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cause
Improper selection of varieties of soybean grains and varieties of adaptability to climatic conditions have a lot to do, in general more varieties of pods and grains are more likely to appear pods. Introduced varieties may also produce a large amount of pods due to their inability to adapt to the local climate. Some late-maturing varieties, due to the lower temperature of the pellets, severely affect the speed of the pellets, resulting in the occurrence of pods, and the occurrence of pods in the early-maturing varieties is lighter.
Drought and flood disasters, which are caused by bad weather affecting the growth period, are the main reasons for the high rate of sorghum.
Soybeans have the best rainfall of 180 mm during the flowering season. In the soybean flowering stage, the damaging harm is greater than the drought, especially when a disaster occurs. The emptying rate and lodging rate are very high. In addition, if sowing is delayed due to drought at the sowing date, shortening the growth period of soybeans will also lead to the emergence of empty grains. In the event of low temperatures at the later stage, the speed of soybean filling will also cause a high emptying rate. At low altitudes, from mid-July to mid-August, it is the long-term high-temperature period. Long days delay the development of soybean grains, while high temperatures promote the rapid development and aging of soybean meal. As a result, soybeans are more profane than they are.
Late nutrition deficiency Soybeans consume more nutrients after flowering. Some farmers use intercropping soybeans without applying base fertilizer or top-dressing fertilizer. The soybeans have insufficient nutrition after full bloom, and the leaves turn yellow prematurely. The plants are short, stems are fine, and the leaves are small. Or the weakness of the same flower cluster is not true. This situation is more common in slopes with lower fertility and more variety.
The imbalance of nutrient content in the soil is another reason for the lack of boron and molybdenum in the soil. Boron and molybdenum are necessary trace elements for soybean development and are closely related to the formation of pods. For example, the content of boron and molybdenum in the soil tillage layer is low, and no fertilizer is added when growing soybeans, which will inevitably increase the empty rate of soybeans. In particular, soybeans planted with heavy crops will have an increase in the rate of depletion each year, especially in years of rain and sunshine.
Poor field management, excessive nitrogen fertilizer, weak grassland, and high density all affect the air and light transmission of soybean plants, which reduces photosynthesis intensity and leads to ambiguity. After the flowering of soybeans, the long-term drought will cause the soybean leaves to wilted and yellow, the young cubs to stop growing, and even the whole plant to die. In the land with shallow plough layers and lack of water sources, the phenomenon of soybean defoliation is more serious.
Diseases and insect pests are serious. Soybean virus disease occurs in summer and autumn, making the leaves shrivel and the larvae deformed. The soybean borer damage can also cause empty pods.
Soybean pods cause many reasons to strengthen management is the key
When soybeans mature, they often find that some of the grains are incompletely developed, even with only a small slice. Such beans are called pods or pods. The amount of soybean pods directly affects the final output and farmers' income. It is necessary to strengthen management and reduce the occurrence of pods in production.