Organic selenium nutrient solution as well as preparation method and application thereof

By spraying diluted organic selenium nutrient solution on Cuiguan pear fruit trees, the problem of lack of selenium is solved, and the selenium content and quality of the fruit are improved. In particular, the effect is best when diluted 300 times, which solves the problem of agricultural products in the existing technology. The problem of insufficient selenium content.

CN103508779AInactive Publication Date: 2014-01-15SUZHOU POLYTECHNIC INST OF AGRI
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Patent Information

Application Number
CN201310453618.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2013-09-29
Publication Date
2014-01-15
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Most areas in China are deficient in selenium, especially in East China. The selenium intake of residents is far below the recommended standard. There is a lack of effective methods to increase the selenium content of agricultural products, especially fruits, which affects the health of residents.

Method used

By using earthworm hydrolyzed nutrient solution as the basis, sodium selenite is added to react at a specific temperature to prepare an organic selenium nutrient solution, which is then diluted and sprayed on the leaves of Cuiguan pear fruit trees to improve the selenium content and quality of the fruit.

Benefits of technology

It significantly increased the selenium content, soluble solid content and vitamin C content of Cuiguan pear fruits, while reducing the titratable acid content and improving the quality of the fruit, especially when sprayed at 300 times dilution, the best effect.

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Abstract

The invention relates to an organic selenium nutrient solution as well as a preparation method and application thereof. The preparation method for the organic selenium nutrient solution comprises the following steps: cleaned fresh earthworms and water are placed in a refiner by the weight ratio of (1: 0.5)-(1: 1.5) for refining to obtain a refined solution with a certain concentration; the refined solution is poured in a container, and is kept at the temperature of 45-50 DEG C for 7-8 hours to obtain an earthworm hydrolysis nutrient solution; sodium selenite is added in the earthworm hydrolysis nutrient solution for reacting for 4-6 hours under the temperature condition of 80-90 DEG C to prepare the organic selenium nutrient solution; the ratio value of the adding quantity of the sodium selenite to the total amount of the earthworm hydrolysis nutrient solution is 5 g / L. The organic selenium nutrient solution used as nutrient is applied to the cultivation of Cuiguan pears, so that the selenium content of the Cuiguan pears, the soluble solid content and the vitamin C content can be improved, and the titratable acid content can be reduced.
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