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Preparation method and application of carbon based fertilizer

A fertilizer and carbon-based technology, applied in the field of carbon-based fertilizer preparation, can solve the problems of destroying the internal structure of the soil, accelerating the speed of soil compaction, destroying the original structure, etc., achieving good soil permeability, improving nutrient composition, and high content of beneficial microorganisms Effect

Inactive Publication Date: 2017-12-26
NANKAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The extensive use of a variety of single chemical fertilizers artificially breaks the ratio of positive and negative ions in the soil, causing serious damage to the original structure of the soil; the irrigation method of flood irrigation also destroys the internal structure of the soil, which cannot be used for crops. Provide nutrients; continuous cultivation of the same crop in the same farmland leads to the absorption of one or several nutrients in the soil and accelerates the speed of soil compaction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method of carbon-based fertilizer, comprising the following steps:

[0020] 1) Crush the crop straw with a particle size of 2cm;

[0021] 2) Under anoxic conditions, the temperature was raised to 400°C at a heating rate of 2.5°C, and the high-temperature roasting was carried out for 3 hours to obtain plant-based biochar monomer materials;

[0022] 3) Soak 1g of the above biochar in 100ml of Bacillus subtilis solution with a concentration of 200 million / ml for 4 hours;

[0023] 4) Take out the above charcoal material and compost it with biomass (corn stalk with a particle size of 5mm and chicken manure at a dry weight of 5:2) in a ratio of 1:5 for composting, and the composting time is 7 days;

[0024] 5) The composting conditions are: use 5% urea solution to adjust the C / N ratio of the compost body to 22, control the compost humidity to 53%, and turn the compost once every 18 hours;

[0025] 6) The product after composting is a carbon-based fertilizer th...

Embodiment 2

[0028] A preparation method of carbon-based fertilizer, comprising the following steps:

[0029] 1) Crush the crop straw with a particle size of 1.5cm;

[0030] 2) Under anoxic conditions, the temperature was raised to 350°C at a heating rate of 2.5°C, and the high temperature was roasted for 2.5 hours to obtain plant-based biochar monomer materials;

[0031] 3) Soak 1g of the above biochar in 100ml of Bacillus subtilis solution with a concentration of 200 million / ml for 2.5 hours;

[0032] 4) Take out the above charcoal material and compost it with biomass (wheat straw with a particle size of 5mm and cow dung at a dry weight of 4:3) in a ratio of 1:10 for composting, and the composting time is 10 days;

[0033] 5) The composting conditions are: use 5% urea solution to adjust the C / N ratio of the compost body to 25, control the compost humidity to 50%, and turn the compost once every 20 hours;

[0034] 6) The product after composting is a carbon-based fertilizer that can rep...

Embodiment 3

[0037] A preparation method of carbon-based fertilizer, comprising the following steps:

[0038] 1) Crush the crop straw with a particle size of 1cm;

[0039] 2) Under anaerobic conditions, the temperature was raised to 300°C at a heating rate of 2.5°C, and roasted at high temperature for 2 hours to obtain plant-based biochar monomer materials;

[0040] 3) Soak 1g of the above biochar in 100ml of Bacillus subtilis solution with a concentration of 200 million / ml for 3 hours;

[0041] 4) Take out the above charcoal material and compost it with biomass (mixed straw with a particle size of 1mm and chicken manure at a dry weight of 5:2) at a ratio of 1:20 for composting, and the composting time is 12 days;

[0042] 5) The composting conditions are: use 5% urea solution to adjust the C / N ratio of the compost body to 20, control the compost humidity to 48%, and turn the compost once every 24 hours;

[0043] 6) The product after composting is a carbon-based fertilizer that can repai...

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Abstract

Farmland soil hardening happens because an original structure of soil is destructed, surface layer organic matters are seriously destructed, soil particles are loosened and the soil is lack of moisture, as a result, the surface becomes hardened. Therefore, soil fertility is decreased continuously, soil gas permeability becomes worse, the nutrition is scarce, soil beneficial microorganisms are greatly reduced, and thus the growth of plants and crops are seriously affected. The invention relates to a preparation method and an application of a carbon based fertilizer formed by the steps of taking biochar as a substrate, combining the biochar with microbial flora and carrying out microbial composting, wherein the biochar is synthesized from straw as a raw material; with use of the method, the soil pH, the gas permeability and the soil beneficial bacteria concentration can be effectively adjusted, the soil fertility is improved, and thus cultivated land is conserved, the current situation of hardening is changed, and the ecological function of the soil is restored.

Description

technical field [0001] The invention relates to a method for preparing a carbon-based fertilizer, in particular to a method for preparing a carbon-based fertilizer and its application. Background technique [0002] With the rapid development of agricultural technology, basic materials and facilities such as chemical fertilizers, pesticides, plastic films, and irrigation have been greatly promoted and used. In order to obtain more economic value, too many chemical elements are put into the farmland soil, which causes great pollution to the soil, increases the dependence of the soil on chemical substances, and breaks the balance of the farmland ecological environment. One of its important manifestations is soil compaction. There is a strong relationship between soil compaction and fertilizer use, improper irrigation, and continuous tillage. The extensive use of a variety of single chemical fertilizers artificially breaks the ratio of positive and negative ions in the soil, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05F17/00C05G3/80
CPCC05C9/00C05F17/00C05G3/80C05D9/00C05F3/00C05F11/00C05F11/08Y02W30/40
Inventor 李维尊鞠美庭候其东黄访仪亮随鹏
Owner NANKAI UNIV
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