Preparation method of environment-friendly nano soil conditioner

Abstract

The invention provides a preparation method of an environment-friendly nano soil conditioner. The method comprises the following steps: in the preparation process, decocting Chinese herbs firstly to prepare liquid medicine and filter residue, and blending the filter residue and grass charcoal to perform fermentation treatment for the first time; calcining attapulgite, steeping by using acid, and then blending with humic acid to obtain nano-structured modified attapulgite; enabling potassium sulfate, zinc amino acid chelate, ferrous amino acid chelate and copper amino acid chelate components tobe subjected to loading so as to achieve a slow-release effect of microelements, finally mixing all materials to perform the fermentation treatment for the second time, and then granulating and drying to obtain the nano soil conditioner, wherein the microelements have very good solidification and slow release effects in soil and are difficult to run away with water and soil, so that the environment-friendly nano soil conditioner is high in utilization rate, can effectively slow down soil compaction and adsorb heavy metal ions, does not contain pesticide, and has a very good effect on drivingcrop pests.

Description

Technical field: [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a preparation method of an environment-friendly nanometer soil conditioner. Background technique: [0002] Urea and compound fertilizers are mostly used as base fertilizers for field crops in my country. In recent years, the amount of fertilizer per mu has increased year by year, far exceeding that of developed countries. As a result, the soil is compacted and hardened, and it is impossible to maintain and fatten. Most of the fertilizers are collected on the soil surface after application , easy to run off, and then cause serious water pollution and waste of fertilizer resources, which will lead to increased agricultural production costs and reduced fertilizer efficiency. However, most of the crop fertilizers sold on the market are non-slow-release fertilizers, which not only easily aggravate soil compaction, but also easily lose nutrients in fertilizers, especial...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the defects of existing soil compaction and hardening for planting crops proposed in the background technology, heavy metal ions exceeding the standard, trace elements are easy to be lost with water and soil, causing environmental pollution, waste of fertilizer resources and other defects, the invention of this application proposes an environmentally friendly nano soil conditioner. The preparation method makes the trace elements in the prepared soil conditioner have a good slow-release effect in the soil, is not easy to be lost with water and soil, has a high utilization rate, and can slow down soil compaction, improve soil air permeability, and absorb and solidify heavy metal ions. And it does not contain pesticides, and has a very good effect of driving away crop pests, which is specifically achieved through the following technologies:

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