Zinc-enriched nutrient, its preparation method and method for cultivating zinc-enriched Houttuynia cordata

Abstract

The invention discloses a zinc-rich nutritional agent and a preparation method thereof as well as a method for growing zinc-rich cordate houttuynia. The zinc-rich nutritional agent comprises the following components in parts by mass: 4-24 parts of zinc source measured by zinc mass, 3-18 parts of organic fertilizer, 0.15-0.6 part of borax and 0.05-0.25 part of cobalt sulfate. According to the method for preparing the zinc-rich nutritional agent, cobalt sulfate and borax are mixed according to the mass ratio of (0.05-0.25):(0.15-0.6) and crushed to nanometer size for later use; zinc salt is crushed to powder and then is added with the organic salt according to the mass ratio of (4-24):(3-18) and mixed uniformly for later use; the products are mixed and granulated on a disc granulator by spraying an appropriate amount of adhesive during disc granulating, and the particle diameter is 2-3 mm. The zinc-rich nutritional agent is applied according to the ratio of 0-20 kg / acre in terms of zinc while base fertilizers are applied, and is managed according to the conventional methods; and the zinc-rich nutritional agent is applied during growth of cordate houttuynia according to the ratio of 8-48 kg / acre in term of zinc, and finally zinc-rich cordate houttuynia is obtained.

Description

technical field [0001] The invention relates to the technical fields of agricultural fertilizer and agronomy, in particular to a method for cultivating zinc-enriched Houttuynia cordata. Background technique [0002] Houttuynia cordata, commonly known as Pleurotus root, pig nostril, stinky grass, etc., is the rooted whole herb of the Sanbaiaceae plant Houttuynia chinensis. It is a traditional Chinese herbal medicine. Pain, cough, wind, stomach and other effects. Houttuynia cordata not only contains a considerable amount of protein and carbohydrates, but also rich in vitamins, amino acids, calcium, phosphorus, iron and other nutrients necessary for the human body, especially health substances such as quercetin. With the strengthening of people's health awareness, Houttuynia cordata is gradually accepted and recognized by people as a pollution-free health plant, and it is developed and processed into health drinks and food such as Houttuynia cordata tea, wine, soda water, etc....

AI Technical Summary

Problems solved by technology

Although the zinc content of Houttuynia cordata is relatively high, it still cannot meet the normal zinc demand of the human body.

[0006] At present, there are few zinc-enriching technologies for Houttuynia cordata, and there are no reports; more research focuses on the restoration of Pb and Zn pollution in Houttuynia cordata (Wu Jun et al., 2011; Li Zhengzheng, 2007), which shows that Houttuynia cordata can withstand adversity. (Pb pollution, other nutrient deficiency) the ability to enrich zinc

However, previous studies only regarded Houttuynia cordata as a highly tolerant plant for repairing heavy metal pollution, and did not consider its enrichment effect on the nutrient element zinc that many people currently lack in a normal living environment.

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