Mineral multifunctional crop soil conditioner and preparation method thereof

Abstract

The invention discloses a mineral multifunctional crop soil conditioner and a preparation method thereof. The mineral multifunctional crop soil conditioner comprises an aluminosilicate mineral, alkaline residues and limestone, the aluminosilicate mineral, the alkaline residues and the limestone are mixed with one another, the aluminosilicate mineral comprises zeolite, the alkaline residues comprise calcium carbonate, calcium sulfate, calcium salt and magnesium hydroxide, the calcium carbonate accounts for 3%-20%, and the calcium sulfate accounts for 10%-35%. According to the invention, limestone is added into the components and used as a substitute of lime so as to improve soil acidification, and the water-containing alkali or alkaline earth metal aluminosilicate mineral mainly composed ofzeolite has extremely strong adsorbability, and can be greatly matched with limestone to reduce the acidity of soil, so that the soil conditioner has the effect of adsorbing harmful heavy metals suchas chromium and lead in the soil. The alkaline residues are matched, so that the PH value of the soil can be increased, and calcium and magnesium in the soil can be supplemented. The overall structure is simple, the purpose of multifunction is achieved, and the practicability is high.

Description

technical field [0001] The invention relates to the technical field of soil conditioners, in particular to a mineral multifunctional crop soil conditioner and a preparation method thereof. Background technique [0002] Soil conditioner, also known as soil conditioner, refers to a material that can improve soil physical properties and promote crop nutrient absorption without providing plant nutrients. It is widely used to prevent soil erosion, reduce soil moisture evaporation or excessive Transpiration, saving irrigation water, and promoting healthy plant growth. [0003] The minerals in the soil are the main substances in the soil solid phase, which constitute the "skeleton" of the soil. [0004] Most of the soil conditioners on the market now use potassium feldspar as the main raw material, and some minerals are used as auxiliary materials. When used, they cannot effectively play the alternating role of improving soil structure and regulating water, and their adsorption I...

AI Technical Summary

Problems solved by technology

[0004] Most of the soil conditioners currently on the market use potassium feldspar as the main raw material and some minerals as auxiliary materials. When used, they cannot effectively improve the structure of the soil and regulate water alternately, and its adsorption It is not strong enough to reduce the acidity of the soil well, and has poor adsorption capacity for harmful heavy metals such as chromium and lead in the soil. At the same time, its functionality is poor, it is difficult to improve the pH value of the soil, and it cannot supplement the intentional ingredient

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