Effect of Soybean Replanting on Yield and Quality of Soybean

The northeastern three provinces and Inner Mongolia’s Dongsi League’s spring soybean area are the major soybean producing areas in China. In recent years, the area sown by soybeans has been 367-400 million hectares, accounting for 50% of the country’s total area. Among them, the soybean area in Heilongjiang Province accounts for 30% of the total soybean in China. -35%. However, due to the withdrawal of protection prices for wheat in the northern region, the planting efficiency is poor, the area is drastically reduced, and the thermophilic crops such as corn are subject to accumulated temperature restrictions. Therefore, these areas have changed from the former “maidou area” to the real “soybean area”. Area". The area of ​​soybeans in Jilin Province is not very large, but there is also a problem of heavy grazing. There is a considerable area in the major soybean producing areas in eastern Yanbian and Dunhua regions. Soybean-corn-soybean or soybean-soybean-corn is planted or planted. the way. Greeting or re-influencing the quality and output of a great impact. According to statistics, soybeans sown (ie, planted every other year) have a 6.1% reduction in output compared with normal soybeans, a 9.9% crop yield reduction in one year, a 13.8% crop yield reduction in two crops, and a 19.0% crop reduction in three crops. Soybean re-feeding control technology can reduce the impact on production.

Impact on soybean production. Different environments have different soybean yields. 1 Heavy weight, light weight; 2 West, southwest weight, light north, east; 3 thin, heavy, light land; 4 slopes heavy, low humidity areas light; 5 dry years heavy, rainy young; 6 no fertilization or less Fertilization is heavy, and more fertilization is light; 7 original pods are sown and ploughed, refurbished and lightened; 8 underground diseases and pests are multiple, pests and diseases are lighter; 9 rehabilitative sites are heavy, and new land is light; 10 is heavy and light in irrigation. The eastern four leagues of the Inner Mongolia Autonomous Region are similar to their neighboring provinces. The Huomeng region is similar to the northern region of Heilongjiang Province and the phenomenon is very serious. Today, I would like to talk about three issues. One is the impact of soybeans on the yield and quality of soybeans; the other is the reason why soybeans are replanted; and the third is prevention technology.

Impact on the quality of soybean

The weight of 100-grain soy beans was reduced, the disease rate and the insect-feeding rate increased, and the quality of the products was significantly reduced. According to investigations in Heilongjiang, Fujin, and other places, the average grain weight of soybeans was 18.2 grams, which was 2.7% lower than that of Zhengyu soybeans. The average grain weight of heavy soybeans was 18.0 grams, which was 3.7% lower than that of Zhengyi soybean. The disease rate and insectivorous rate of soybeans planted in soybeans increased by 39.7%, respectively, compared with that of sorghum. The disease-infected soybeans had an increase of 95.5% in the rate of diseased grains and insects, respectively. There is no obvious effect on the protein and fat content in soybeans and short-term weight gain. For three years or more, the protein content of soybeans increased significantly and the fat content decreased significantly.

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