Selenium-containing fruit stem smear for fruits and vegetables and preparation method thereof as well as method for improving content of selenium in fruits and vegetables

Abstract

The invention belongs to the technical fields of selenium-containing fruit stem smears for fruits and vegetables, preparation processes and use methods thereof and discloses a selenium-containing fruit stem smear for f fruits and vegetables as well as a preparation process and a use method thereof. The selenium-containing smear is characterized by comprising the following materials by weight: 100kg of refined wool oil, 6.5-13 kg of refined food-grade compound amino acid powder, 0.06-0.6 kg of pure selenium contained in selenite or selenic acid and 10-13.5 kg of water. The materials are chelated and homogeneized, so that the selenium-containing fruit stem smear for fruits and vegetables can be attached to the fruit stems for a long term and can not be taken away by wind and rain; since theselenium element is directly absorbed by fruits without being consumed by other parts of plants, absorption rate is improved so that the fruits and vegetables which have stems contain high selenium contents; and the preparation method and use method are convenient for operation and are beneficial to popularization.

Description

technical field [0001] The invention belongs to the technical field of fruit and vegetable coating agent, preparation process and application method, and specifically relates to a selenium-containing fruit and vegetable stalk coating agent, a preparation process and a method for increasing the selenium content of fruits and vegetables. Background technique [0002] In my country, the endemic diseases caused by selenium deficiency have spread to more than ten provinces and autonomous regions from northeast to southwest. It has been found that Keshan disease and Kaschin-Beck disease are closely related to the lack of selenium. Keshan disease mostly occurs in childhood during growth and development, and it is more common in 2-6 years old, and it is also seen in women of childbearing age. It mainly invades the heart, causing arrhythmia, tachycardia or bradycardia, and heart enlargement, which eventually lead to heart failure and cardiogenic shock. The main lesion of Kashin-Bec...

AI Technical Summary

Problems solved by technology

[0003] At present, the method for increasing the selenium content in fruits and vegetables is to mix inorganic fertilizers with one or more of potassium selenate, sodium selenate or ammonium selenate, and mainly adopt the following two fertilization methods: one, the soil application method , this method has the following disadvantages: 1. Selenium is easy to antagonize with calcium, sulfur, magnesium and other elements in the soil or be adsorbed and fixed into a state that cannot be absorbed by plants, thereby reducing the absorption rate; 2. In the case of soil drought Plants can't absorb it, and it is easy to be leached to the soil below the root under the situation of rain and waterlogging, and the root system cannot reach it and cannot absorb it; second, foliar spraying has the following disadvantages in this method: 1. The selenium content of the plant itself is high, and The selenium content of the fruit is low. Since selenium is not an essential nutrient element for plants, excessive application of selenium will easily cause plant yield reduction; 2. The absorption rate is low in dry air, and it is easy to be leached by rain in rainy days. 3. From the leaves Absorbed, then transported and distributed through rhizomes and branches, and finally little in the fruit, resulting in a waste of selenium