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Biological carbon soil conditioner and preparation method thereof

A soil conditioner and bio-carbon technology, which is applied in the direction of soil conditioning materials, chemical instruments and methods, fertilizer mixtures, etc., can solve the problems of increasing costs, increase air permeability, increase base exchange capacity, and promote the transformation of nutrients Effect

Active Publication Date: 2010-09-01
沃达农业科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, due to the low density and lightness of biological carbon, in order to achieve better results, it is usually made into powder, and at the same time increases the cost of transportation and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Cotton stalks are used as raw materials, carbonized at 400°C for 4 hours under anaerobic conditions, crushed and passed through a 0.1mm sieve to obtain biochar, take 40 parts of biochar; 10 parts of zeolite, crushed through a 0.1mm sieve; bentonite 15 parts, crushed through a 0.1mm sieve; 15 parts of clay, crushed through a 0.01mm sieve; after mixing, take 15 parts of water; add and stir, and use an extrusion granulator to make rod-shaped particles with a diameter of 2mm and a length of 4mm, which is obtained Biochar soil conditioner, finally packaged in portions.

Embodiment 2

[0014] Using sawdust as raw material, under anaerobic conditions, after carbonization at 500°C for 3 hours, crushed and passed through a 0.2mm sieve to obtain biochar, take 50 parts of biochar; 10 parts of pumice, crushed through a 0.1mm sieve; 20 parts of bentonite 10 parts, crushed through a 0.2mm sieve; 10 parts of clay, crushed through a 0.05mm sieve; after mixing, take 20 parts of water; add and stir, and use an extrusion granulator to make rod-shaped particles with a diameter of 3mm and a length of 5mm, that is, biological Carbon soil conditioner with final portion packaging.

Embodiment 3

[0016] With dead branches as raw materials, under anaerobic conditions, after carbonization at 700°C for 1 hour, crushed and passed through a 1mm sieve to obtain biochar, take 45 parts of biochar; 20 parts of pumice, crushed through a 0.5mm sieve; 25 parts of bentonite After mixing, take 25 parts of water; add and stir, and use an extrusion granulator to make rod-shaped particles with a diameter of 3 mm and a length of 5 mm, that is, a biochar soil conditioner is obtained, and finally packaged in portions.

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PUM

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Abstract

The invention discloses a biological carbon soil conditioner and a preparation method thereof. The biological carbon soil conditioner mainly comprises the following components in parts by weight: 40-60 parts of biological carbon, 10-25 parts of pumice and 20-45 parts of bentonite, wherein the biological carbon is obtained by performing anaerobic carbonization on at least one of crops straw, wooden meal, deadwood or deciduous leaves at the temperature of 300-1000 DEG C; and the biological carbon soil conditioner is prepared by the following the steps: mixing the raw materials, adding 15-35 parts of water by weight, stirring, extruding, pelletizing and packaging components. The invention can improve soil physicochemical property, enhance soil organic matter content and fertilizer utilization rate, and reduce carbon dioxide burst size.

Description

Technical field: [0001] The invention relates to a biological carbon soil improver and a preparation method thereof. Background technique: [0002] Crop straw is an important source of organic fertilizer. Years of production practice have shown that returning straw to the field plays an important role in maintaining and stabilizing the content of soil organic matter. However, the straw is directly returned to the field, especially in the dryland soil, the mineralization and decomposition speed of the straw is faster, and the mineralization coefficient is higher. Moreover, the organic matter content in the soil does not increase significantly when the straw is returned to the field for a long time, and the effect of improving soil and increasing soil fertility is limited. At present, the soil conditioner disclosed in Chinese Patent Application No. 200410002132.4 is obtained by granulating industrial solid wastes such as fly ash, slag, combustion ash and steel slag. However,...

Claims

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Application Information

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IPC IPC(8): C09K17/04C09K101/00
Inventor 侯振安冶军王海龙马莉林秀侯森
Owner 沃达农业科技股份有限公司
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