Planting method of selenium-rich black soybean

Abstract

The invention belongs to the field of agricultural planting, and particularly relates to a planting method of selenium-rich black soybean. The method comprises the following steps: A, seed treatment: drying full seeds for 2 to 3 days, dissolving every kilogram of seeds into 30 milliliters of water with 0.8 to 1.2 gram of sodium borate, stirring the seeds after dissolution, and drying the seeds in shade, so as to be convenient for seeding; B, soil preparation and fertilization: selecting sandy soil, applying 1000 to 2000 kilograms of organic fertilizer for each mu, and then performing rotary tillage with the rotary tillage depth being 20 to 23cm; C, hole opening and seeding: ensuring that the seeding depth is 3 to 4cm, the row spacing is 10 to 15cm, the plant spacing is 45 to 60cm, 1 to 2 seeds are sown for each hole, and 10000 to 12000 plants are sown for each mu; D, field management: spraying sodium selenite solution with the mass concentration being 0.5% once to leaf surfaces during the early blooming period and the seed filling period of black soybean. The selenium content of the produced black soybean is stabilized at 520 to 610 micrograms/100 grams, and the health care effect of the black soybean is greatly improved.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of agricultural planting, in particular to a method for planting selenium-enriched black soybeans. [0003] 【Background technique】 [0004] Black beans are rich in nutrition, containing protein, fat, vitamins, trace elements and other nutrients, and also have a variety of biologically active substances, such as black bean pigment, black bean polysaccharide and isoflavones. Black beans have the characteristics of high protein and low calorie, and the protein content is as high as more than 45%. The test found that it contains at least 19 kinds of fatty acids, and the content of unsaturated fatty acids is as high as 80%, which plays a vital role in regulating cholesterol metabolism. [0005] Selenium is an essential element in large quantities for the human body, and is the fifth most abundant element in the human body, accounting for about 1.7% of body weight. It not only participates in the formation of bones...

AI Technical Summary

Problems solved by technology

However, the selenium content in the staple food crops and vegetables of the Chinese people is not enough to supply people's daily needs, and the selenium content of the Chinese diet is only half of the recommended value

[0006] According to the analysis of data, the selenium content in the existing popular black soybean varieties is generally below 250 micrograms / 100 grams, which is difficult to meet the needs of the human body for selenium elements, and there are no relevant reports on the planting methods of selenium-enriched black soybeans at home and abroad.