Multifunctional soil improver and preparation method thereof

Abstract

The invention discloses a multifunctional soil improver and a preparation method thereof. The preparation method comprises the following steps: 1) preparing fermented livestock and poultry manure; 2) preparing an organic ecological fertilizer; and 3) preparing a soil improver. The multifunctional soil improver disclosed by the invention has the beneficial effects that raw materials adopted by the method are byproducts or waste slag materials in industrial and agricultural production, so that not only is price low, but also complete utilization of resources is realized, and the environment is protected; soil can have good water holding capacity, soil bulk density also can be reduced, porosity is improved, physiochemical properties of the soil are improved, more soil nutrients are retained, pH value is regulated, and soil fertility and fertilizer maintenance capability are improved; organic compounds are provided, so that enzyme activity and nitrogen and phosphorus cycle in the soil are improved for improving microbial diversity and microbial activity, quantity of beneficial bacteria is increased, pathogenic bacteria can be killed, migration capability of heavy metals can be reduced, and absorption of crops on the heavy metals is inhibited, so that the multifunctional soil improver disclosed by the invention is efficient, practical and environment-friendly.

Description

technical field [0001] The invention relates to the field of soil improvers, in particular to a multifunctional soil improver and a preparation method thereof. technical background [0002] Soil is the carrier for the growth of terrestrial plants. Most of the nutrients needed for plant growth are obtained from the soil. Soil characteristics determine whether plants can grow healthily. Soil characteristics include soil structure, water content, temperature, and enzyme activity. , the number of microorganisms, ventilation conditions, solution concentration, hydrogen ion concentration. Healthy soil should be considered in terms of soil organic matter, soil microorganisms, trace elements, pH, salinity, harmful substances, etc. However, with the continuous development of economy and society, the problem of soil degradation has become increasingly prominent, mainly manifested as soil compaction and hardening, erosion, salinization, acidification, element imbalance, chemical pollu...

AI Technical Summary

Problems solved by technology

[0005] The Chinese invention patent of CN 103382391 B discloses a multifunctional soil conditioner and its preparation method. The soil conditioner is made of weathered lignite extract, urea and EDTA complexes of iron, zinc and manganese. The advantages of simple production process, but the reaction time of this method is long, and the price of raw materials is high, the organic matter content of the amendment is low, the content of mineral elements is small, and it does not contain water-retaining agent and loosening agent, so its effect on soil improvement is limited, and it does not have promotion value