Active agriculture and forestry charcoal micro-nano composite soil conditioning agent and preparation method thereof

A soil conditioner and biochar technology, applied in agriculture, fertilizer mixtures, alkaline orthophosphate fertilizers, etc., can solve problems such as heavy metal pollution, soil compaction, etc., to increase pH value, improve soil physical and chemical properties and structure, adsorption Excellent effect of chelating ability

Inactive Publication Date: 2018-06-08
JIANGXI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the serious pollution of pesticides and heavy metals in the soil, soil compaction and other problems, the invention provides a new type of active agricultural and forestry biochar micro-nano composite soil conditioner, which integrates trad

Method used

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  • Active agriculture and forestry charcoal micro-nano composite soil conditioning agent and preparation method thereof
  • Active agriculture and forestry charcoal micro-nano composite soil conditioning agent and preparation method thereof
  • Active agriculture and forestry charcoal micro-nano composite soil conditioning agent and preparation method thereof

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Embodiment 1

[0049] The invention provides a new type of active agricultural and forestry biochar micro-nano composite soil conditioner, which is composed of the following components in weight percentage: 50% of micro-nano active agricultural and forestry biochar, and 50% of other auxiliary materials; wherein,

[0050] The preparation method of the micro-nano activated agricultural and forestry biochar is:

[0051] Step 1: drying and coarsely crushing agricultural and forestry biomass waste;

[0052] Step 2: Introduce nitrogen, and under anaerobic conditions, the pyrolysis temperature is 450°C, and the time is 1-2.5 hours;

[0053] Step 3: Finely pulverize the pyrolysis product, and then sieve to obtain the crude product of micro-nano activated agricultural and forestry biochar with a diameter of less than 500 μm;

[0054] Step 4: The crude micro-nano activated agricultural and forestry biochar in step 3 is subjected to active treatment with hydrogen peroxide solution and ammonia solution...

Embodiment 2

[0068] The invention provides a new type of active agricultural and forestry biochar micro-nano composite soil conditioner, which is composed of the following components in weight percentage: 50% of micro-nano active agricultural and forestry biochar, and 50% of other auxiliary materials; wherein,

[0069] The preparation method of the micro-nano activated agricultural and forestry biochar is:

[0070] Step 1: drying and coarsely crushing the agricultural biomass waste;

[0071] Step 2: Introduce nitrogen, and under anaerobic conditions, the pyrolysis temperature is 280°C, and the time is 1-2 hours;

[0072] Step 3: Finely pulverize the pyrolysis product, and then sieve to obtain the crude product of micro-nano activated agricultural and forestry biochar with a diameter of less than 500 μm;

[0073] Step 4: The crude micro-nano agricultural and forestry activated biochar in step 3 is subjected to active treatment with hydrogen peroxide solution and ammonia solution for 12 hou...

Embodiment 3

[0088]The invention provides a novel active agricultural and forestry biochar micro-nano composite soil conditioner, which is composed of the following components in weight percentage: 50% of micro-nano activated biochar, 50% of other auxiliary materials; wherein,

[0089] The preparation method of above-mentioned micronano active agricultural and forestry biochar is:

[0090] Step 1: Drying and coarsely crushing forestry waste;

[0091] Step 2: Nitrogen is introduced, and the thermal cracking temperature is 600°C under anaerobic conditions, and the time is 1.5-2.5 hours;

[0092] Step 3: finely pulverize the pyrolysis product, and then sieve to obtain the crude product of micro-nano agricultural and forestry activated biochar with a diameter of less than 500 μm;

[0093] Step 4: The crude micro-nano activated agricultural and forestry biochar in step 3 is subjected to active treatment through hydrogen peroxide solution and soda-lime solution for 12 hours each to obtain micro...

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Abstract

The invention relates to a novel active agriculture and forestry charcoal micro-nano composite soil conditioning agent and a preparation method thereof, and belongs to the fields of soil conditioningagent technology and compound fertilizer technology. The novel active agriculture and forestry charcoal micro-nano composite soil conditioning agent is prepared from the following ingredients in percentage by weight: 40 to 60 percent of micro-nano active agriculture and forestry charcoal and 40 to 60 percent of other auxiliary materials, wherein the auxiliary materials are prepared from the following ingredients in percentage by weight: 25 to 35 percent of agriculture and forestry biomass waste, 15 to 35 percent of nonmetal oxysalt ore, 15 to 30 percent of natural macromolecular organic matterand 15 to 30 percent of traditional Chinese medicine. The prepared novel active agriculture and forestry charcoal micro-nano composite soil conditioning agent has relatively good soil pesticide, heavy metal harmful residue in-situ repair functions; the efficacy of soil fertility improvement and plant disease and insect pest prevention and control can be achieved.

Description

technical field [0001] The invention relates to the field of soil conditioner technology and compound fertilizer technology, in particular to a novel active agricultural and forestry biochar micro-nano composite soil conditioner and a preparation method thereof. Background technique [0002] The research on soil conditioners began at the end of the 19th century. There are more researches on natural conditioners, artificial synthetic modifiers, natural-synthetic copolymer conditioners and biological conditioners. Soil conditioners can effectively improve soil physical and chemical properties and soil nutrient status, and have a positive impact on soil microorganisms, thereby increasing the productivity of degraded soils. At present, soil conditioners have been widely used in the improvement of degraded soil, and their improvement effects are mainly reflected in: first, improving soil physical properties, enhancing soil water retention and air permeability; enhancing the avail...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/02C05G3/04C05G3/60C05G3/80
CPCC05B7/00C05G3/00C05G3/60C05G3/80C05D3/00C05D9/00C05F11/00C05F11/02
Inventor 文阳平盛莹莹董文洁黎帆李振涛陈莉
Owner JIANGXI AGRICULTURAL UNIVERSITY
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