A kind of production method of selenium-enriched mango

Abstract

The invention discloses a production method of selenium-enriched mango, comprising: preparation of selenium-enriched liquid fertilizer: weighing 0.06-0.12 kg of sodium selenate, 6 kg of calcium nitrate, 5 kg of magnesium nitrate, and 2 kg of potassium chloride, and dissolving them in 1 L of water, Stir evenly and dilute 1000 times to make a selenium-enriched liquid fertilizer; spray the selenium-enriched liquid fertilizer on the leaves: use an electric sprayer to directly spray the selenium-enriched liquid fertilizer on the On the mango tree leaves and peels, spray until the leaves are uniformly covered with mist water droplets; other management: other water and fertilizer, branch pruning, and pest control are carried out according to conventional methods. The present invention uses hexavalent selenium (sodium selenate), which is most easily absorbed by plants, as the selenium source, adopts a simple foliage spraying method, and precisely controls the valence and concentration of selenium in the selenium-enriched liquid fertilizer, while using calcium, magnesium, Potassium promotes selenium, which greatly improves the absorption and utilization of selenium by plants.

Description

technical field [0001] The invention relates to the technical field of characteristic fruit production management, in particular to a production method of selenium-enriched mango. Background technique [0002] Mango (Mangifera indica L.) belongs to the Anacardaceae Mango genus, ranking third among tropical fruits, and has become one of the five largest fruits in the world, known as the "king of tropical fruits". Mango is rich in nutrition, unique in taste and flavor. The fruit is rich in β-carotene, vitamin A, vitamin C, organic acids, sugar, protein, crude fiber and mineral elements. Mango can be eaten fresh, and can also be made into juice, jam, canned, pickled, hot and sour pickles, mango milk powder, candied fruit, etc. my country is rich in mango resources and is the second largest mango producer in the world. In 2010, the planting area reached 129,000 hectares, with a total output of 906,400 tons. The planting areas are mainly distributed in Hainan, Guangdong, Guangxi...

AI Technical Summary

Problems solved by technology

[0008] In the patent "A Production Method of Selenium-enriched Mango", the method of fruit tree irrigation + fruit spraying is used to produce selenium-enriched mango, which is cumbersome to operate and high in production cost

The concentration of the selenous acid solution used for spraying in this patent is 0.055%, which is too high

On the one hand, if the concentration of selenium fertilizer is too high, the selenium content of the fruit will exceed the standard, which will not only fail to achieve the effect of selenium supplementation, but may also cause chronic selenium poisoning

On the other hand, due to the thin cuticle of the mango peel, high-concentration selenium fertilizers will damage the mango skin. After the mango peel is damaged, it is easy to be attacked by pathogens and form spots, which will affect the appearance and quality of the fruit.

Field experiments have proved that spraying sodium selenite concentration greater than 0.024% will cause damage to the mango peel, and the selenium content of mango exceeds the standard

In addition, in this patent, the spraying needs to start from the time when the mango fruit is formed, and spray once every 5 to 6 days until 15 days before the mango goes on the market. It takes nearly 4 months for the mango to mature, so it needs to be sprayed about 20 times, which is cumbersome and expensive. A lot of manpower and material resources, high production costs