Production method of jujube rich in selenium, iron and zinc

Abstract

The invention discloses a production method of jujube rich in selenium, iron and zinc, which is suitable for northwestern regions such as Xinjiang Province. The method adopts different fertilization methods during different growth stages of jujube tree: from 10 days before germination to 10 days after germination, a first composite nutrition containing selenium, iron, zinc, phosphorus, potassium and nitrogen is applied to rhizosphere soil; from blooming stage to young fruit stage, a second composite nutrition containing selenium, iron, zinc, magnesium and calcium is injected to xylem of tree trunk; and during fruit development stage, a third composite nutrition containing selenium, iron, zinc, magnesium, calcium, phosphorus and potassium is sprayed to leaf surface in the evening. The method is especially suitable for production of jujube rich in selenium, iron and zinc in dry regions with sufficient illumination, such as Xinjiang Province.

Description

technical field [0001] The invention relates to the technical field of fruit tree cultivation, in particular to a production method of dates rich in selenium, iron and zinc. Background technique [0002] Red dates have been planted for more than 3,000 years. Red dates are regarded as a good product for nourishing blood and Qi. There is a folk saying that "a solar eclipse of five dates will make you live forever". In most areas of my country, especially in Northwest China, there is sufficient sunlight and a large temperature difference between day and night. The natural environment conditions are very suitable for the growth of jujube trees. It is one of the main high-quality jujube producing areas in my country. Jujube is not only rich in vitamins, protein, fat and cellulose needed by the human body, but also rich in iron, potassium, calcium, phosphorus, zinc and other minerals that are beneficial to the human body. [0003] The chemical composition of the human body is app...

AI Technical Summary

Problems solved by technology

However, this method is difficult to apply to the northwestern regions with long and strong sunlight, especially in Xinjiang. Due to the strong sunshine in these areas, the annual sunshine time in Xinjiang is between 2550 and 3500 hours, and the ground receives The total energy of solar radiation received is also relatively large, with little rain and dryness, the solution sprayed on the leaves evaporates quickly, and the absorption rate of the leaves to the nutrient solution is low. Foliar spraying throughout the growing period is difficult to apply in Xinjiang

The "organic selenium-rich jujube and its production method" disclosed in CN102511349A is to root-apply nano-selenium nutrient in one or more periods of the growth cycle of jujube in the winter dormancy period, germination period, flowering period, young fruit period, and fruit expansion period. However, the disadvantage of root fertilization is that it is greatly affected by regional rainfall. The high rainfall and high soil water content cause serious fertilizer loss, and less rainfall is not conducive to the absorption of fertilizer by the root system. With light and very little rainfall, the advantages of root application cannot be brought into play, and root application is also affected by soil conditions

However, there are still deficiencies. One is that only Na 2 SeO 3 , simple supplementation of selenium plant absorption and transformation effect is not good; second injection into the stem pith, the absorption effect is not good, and even cause damage to fruit trees