Base material for cadmium reduction in Chuanxiong cultivation, and its fertilizer and application

Abstract

The invention provides a cadmium-reducing base material for planting Chuanxiong, and a fertilizer and application thereof, wherein the base material comprises organic fertilizer, calcium magnesium phosphate fertilizer and biological bacteria obtained by processing kitchen waste, and the base material is processed by kitchen waste. The organic fertilizer obtained by the treatment of organic matter contains organic matter and humic acid, and the biological bacteria include Bacillus lateralis and Bacillus subtilis. The function of organic fertilizer and calcium magnesium phosphate fertilizer is to improve the physical and chemical properties of soil and reduce the effectiveness of soil cadmium, so as to reduce the adsorption of cadmium in Chuanxiong; the combination of two biological bacteria, Bacillus lateralis and Bacillus subtilis, can be used to promote root growth. Reduce cadmium, synergistic effect. The fertilizer comprises zinc sulfate, sodium silicate and base material for cadmium reduction in the cultivation of Chuanxiong, and the parts by weight are respectively 10-22 parts, 18-22 parts and 400-650 parts. Zinc sulfate and cadmium in fertilizers have antagonistic effects, which can reduce the adsorption of cadmium in Chuanxiong. Sodium silicate and cadmium form insoluble cadmium silicate, which can reduce the effectiveness of cadmium, while strengthening the cell wall of Chuanxiong to improve resistance to various diseases.

Description

technical field [0001] The invention relates to the field of soil fertilizers, in particular to a cadmium-reducing base material for planting chuanxiong, and fertilizers and applications thereof. Background technique [0002] Chuanxiong, a commonly used Chinese herbal medicine, is often used to promote blood circulation, dispel wind and relieve pain. It is a cultivated plant, mainly produced in Sichuan (Pengzhou), in Yunnan, Guizhou, Guangxi and other places, growing in a mild climate environment. Due to the high cadmium content in the soil environment in some parts of the southwest, and the fact that Chuanxiong plants have a certain enrichment effect on cadmium, the dual effects have led to the current cadmium content in the rhizomes of Chuanxiong exceeding the standard, which seriously affects its circulation in the market, and even affects The development of Chinese medicine industry in China. [0003] Specifically, the cadmium content in the planting soil of Chuanxiong...

AI Technical Summary

Problems solved by technology

For example, the main function of traditional bio-organic fertilizers is to improve soil, increase organic matter, increase soil beneficial bacteria, and increase crop disease resistance. It cannot reduce the availability of heavy metals and reduce the adsorption of cadmium by Rhizoma Chuanxiong, so it cannot fundamentally change the cadmium content of Rhizoma Chuanxiong. The problem of exceeding the standard; in addition, the current bio-organic fertilizers have no targeted development for reducing cadmium in Rhizoma Chuanxiong. Different species of plants have differences in rhizome germination and root development, and have different resistance to pathogens, so they are suitable for green peppers. , cucumber, grape, Codonopsis pilosula, wolfberry, honeysuckle and other crops are not necessarily suitable for the cultivation of Chuanxiong

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