Production method of rich-selenium Chinese chestnut

Abstract

The invention discloses a rich-selenium Chinese chestnut and a production method thereof, and solves the problems that the selenium content of a common Chinese chestnut cannot meet the needs of a human body, the selenium content in soil selenium application and punching for selenium injection is difficult to control, and the like. The method is characterized by comprising the following steps: uniformly spraying a selenium solution to the leaf surfaces of the plant in sunny day during each growth development period after the leafing of Chinese chestnut and before the coloring of fruit, particularly during the last period of pollination, expansion period and fruit strengthening period, wherein the selenium solution is sprayed once in each period, 3-6 times of spraying is performed at an interval of 15-30 days, and 4-10 g of selenium solution is sprayed onto the leaf surfaces of each mu so as to obtain a standard rich-selenium Chinese chestnut, wherein each kg of the standard rich-selenium Chinese chestnuts contains 100-500 micrograms of selenium. The production method is simple to dose, convenient to operate and the like; and other nutrient elements needed by the Chinese chestnut can be mixed with pest control medicines so as to improve the medicine effect and fertilizer efficiency; and the medicine is prepared by fruit growers when necessary, and is easy to popularize and use.

Description

1. Technical field [0001] The invention belongs to plant planting methods, in particular to a selenium-enriched chestnut and a production method thereof. 2. Background technology [0002] After half a century of exploration and research by Chinese and foreign scientists and medical workers, it has been scientifically demonstrated that various important organs of the human body, including: heart, liver, kidney, pancreas, etc., all need a certain amount of selenium to maintain normal functions. There are more than forty kinds of diseases related to selenium deficiency. Such as liver disease, tumor, cardiovascular, diabetes, cataract, etc., especially selenium is closely related to human aging problems. [0003] In 1973, the World Health Organization announced that selenium is an essential micronutrient for the human body. The Chinese Nutrition Society has listed selenium as one of the 15 daily dietary nutrients. It is recommended that adults consume 50-250 micrograms of selen...

AI Technical Summary

Problems solved by technology

[0005] At present, there are literatures that apply selenium to the soil, apply selenium to tree body perforation, and apply selenium-containing foliar compound fertilizer to increase the selenium content of agricultural products. Selenium-containing products are generally more expensive.

Applying selenium to the soil will inevitably lead to waste and environmental pollution caused by soil adsorption and aqueous solution loss; the perforated infusion method is cumbersome to operate and requires a lot of work; the selenium-containing compound fertilizer foliar fertilizer is a product with a fixed ratio of multiple elements, and in ever-changing conditions Under natural conditions such as different regions, different soils, different climates, different crops, and different phenological periods (growth periods), each ingredient cannot follow the principle of "barrel law" formula fertilization, and its portion is supplied on demand, which may easily cause a certain ingredient to exceed the standard or insufficient

Some selenium-enriched chestnuts or other selenium-enriched agricultural products produced by the above method have a slightly higher selenium content than ordinary products, which cannot meet the selenium content standard, and it is difficult to control the selenium content of the product