Heavy metal degrading soil conditioner

Abstract

The invention relates to the technical field of soil improvement, in particular to a heavy metal degrading soil conditioner. In allusion to the problems that the conventional soil conditioner is relatively narrow in application range, has low effective component content and low effective component extracting rate, easily causes resource waste and does not have an excellent heavy metal degrading effect, the invention provides the scheme as follows: the heavy metal degrading soil conditioner comprises the following raw materials in percent: 25-40% of an organic fertilizer obtained by thoroughly decomposing bamboo and wood leftovers, 15-25% of an alga fertilizer, 20-30% of medical stone, 3-8% of EM compound bacteria, 3-10% of shale opal, 2-7% of phosphorus ore powder, 5-15% of furfural residue and 5-10% of fly ash. The heavy metal degrading soil conditioner is excellent in improvement effect of degrading heavy metal contaminated soil and wide in application range; the effective component content is high, and further the effective component extracting rate can be increased, so that resource waste is avoided; the heavy metal degrading soil conditioner is easy to prepare.

Description

Technical field [0001] The invention relates to the technical field of soil improvement, in particular to a soil conditioner that degrades heavy metals. Background technique [0002] A soil conditioner is a kind of medicine used to condition soil elements. The soil conditioner is aimed at those soils where nutrients are lost due to excessive use or pollution. The soil conditioner is pollution-free and pollution-free, and is used in agriculture. With the development of industry, the content of heavy metals in the soil is increasing, and the harm of heavy metals is great: First, the migration of heavy metals in the soil-crop system directly affects the physiological, biochemical, growth and development of crops, thereby affecting crop yields. For example, cadmium is a toxic element that harms plant growth. If cadmium in the soil is too high, it will destroy the chlorophyll structure of plant leaves, reduce the absorption of water and nutrients by roots, inhibit root growth, and cau...

AI Technical Summary

Problems solved by technology

With the development of industry, the content of heavy metals in the soil is increasing, and heavy metals are very harmful: first, the migration of heavy metals in the soil-crop system directly affects the physiology, biochemistry, growth and development of crops, thereby affecting the yield of crops and quality. For example, cadmium is a toxic element that endangers plant growth. If cadmium is too high in the soil, it will destroy the chlorophyll structure of plant leaves, reduce the absorption of water and nutrients by roots, inhibit root growth, cause plant physiological obstacles and reduce yield. Lead In crop tissues, it can lead to the weakening of oxidation, photosynthesis and fat metabolism, the reduction of water absorption and the increase of oxygen consumption, which hinders the growth of crops and even causes the death of crops. Second, heavy metals eventually endanger human beings through the food chain. Health, such as: cadmium has significant biological toxicity, which will bring a series of problems to the human body such as high blood pressure, cardiovascular and cerebrovascular diseases, and kidney dysfunction. It will cause skin pigmentation and abnormal keratinization. Chromium will cause numbness of limbs and mental disorders. Lead is a kind of heavy metal pollution poisoning.

[0003] The patent document with the application number CN106941801A discloses a high-efficiency soil conditioner rich in selenium, zinc and calcium, which consists of 70% of oyster shell powder, 10 parts of potassium humate, 3 parts of phosphorus and potassium dihydrogen, 10 parts of boron and magnesium fertilizer, yeast 1 part of selenium, 1 part of anionic polyacrylamide, 1 part of plant cytokinin, and 4 parts of potassium-rich feldspar; although the present invention has the effect of enriching selenium, zinc and calcium, it can reduce the harm of toxic and harmful substances in the soil to crops, but its The scope of application is small, and the content of active ingredients is low, the extraction rate of active ingredients is low, it is easy to waste resources, and it does not have an excellent effect of degrading heavy metals