Organic selenium-enriched liquid fertilizer and preparation method thereof

Abstract

The invention discloses an organic selenium-enriched liquid fertilizer and a preparation method thereof. The organic selenium-enriched liquid fertilizer comprises the following components in percentage by weight: more than or equal to 10 percent of total animal keratin hydrolyzed amino acid, 0.1 to 3 percent of organic selenium in terms of selenium, 2 to 3 percent of surfactant, more than or equal to 1.0 percent of trace element zinc required by plants, more than or equal to 1.0 percent of boron, and the balance of water. The invention also provides the preparation method of the organic selenium-enriched liquid fertilizer. The organic selenium-enriched liquid fertilizer is safe in production and application, can improve the selenium absorption efficiency of farm crops and improve disease and insect resisting, drought and flood resisting and yield increasing capacities of the farm crops, has the characteristics of supplementing the selenium, improving the fruit quality of the farm crops and reducing heavy metal toxicity, and has a storage life of 3 years without deterioration.

Description

technical field [0001] The invention relates to an organic selenium-enriched liquid fertilizer and a preparation method thereof, in particular to a selenium-enriched liquid fertilizer containing organic selenized amino acids and a preparation method thereof. Background technique [0002] Selenium has been designated by the World Health Organization and the Chinese Medical Association as the third largest micronutrient health element after iodine and zinc. Medical research shows that selenium has many functions in the human body, such as anti-oxidation, cancer prevention, detoxification, and immunity improvement, and has unique effects in preventing tumors, cardiovascular and cerebrovascular diseases, diabetes, and upper respiratory tract infections. In addition, selenium is also an antidote for many heavy metals such as lead, mercury, arsenic and nitrite, enjoying the reputation of "the king of anti-cancer" and "natural antidote". [0003] The human body’s intake of seleniu...

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Problems solved by technology

[0005] The key to selenium supplementation of crops lies in the production method and application method of selenium fertilizer, which is a hot research topic now. There are as many as a dozen Chinese patent documents on the existing selenium fertilizer production method. In summary, one is to directly add selenium to fertilizer Inorganic compounds, such as Chinese patent application number 01113654.5 disclosed selenium-enriched amino acid and its production method, directly add sodium selenite, this method can improve the selenium content of crop fruits, but sodium selenite toxicity is high, in the production and use There are major safety risks in the process. In addition, inorganic selenium compounds are easily reduced to non-absorbable or difficult-to-absorb substances, resulting in low absorption rate; the second is to physically add nano-selenium in plant nutrient solution, such as the fruits and vegetables disclosed in Chinese Patent No. 200410023389.8 The disadvantage of nano-selenium nutrition regulator is that the product cannot be stored for a long time. With the prolongation of product storage time, nano-selenium surface will gather and agglomerate due to electrostatic action, thus losing the nano-selenium activity of nano-selenium, which cannot reach the expected effect. Crop absorption effect