Silicon-rich biochar organic fertilizer

A technology of biochar and organic fertilizer, which is applied to the treatment of bio-organic parts, organic fertilizers, and the preparation of organic fertilizers. Absorption and utilization of crops, continuous effect of fertilizer efficiency

Inactive Publication Date: 2015-03-25
国家林业局竹子研究开发中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the hard coarse fiber and lignin on the surface of the rice husk are intertwined and have a dense structure, it is not easy to decompose in the soil.
Therefore, directly putting rice husks into the soil has a very limited effect on improving the available silicon content of the soil. If too much is added, it will often bring adverse effects on the soil structure.

Method used

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  • Silicon-rich biochar organic fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A silicon-rich biochar organic fertilizer, which is prepared by the following method:

[0029] (1) One-time fermentation: mix 80 parts by weight of rice hulls, 20 parts by weight of rice bran and 0.2 parts by weight of Bacillus subtilis liquid (commercially available, with a viable number of more than 90 million cells / ml) to obtain a first-time mixture, add water to adjust once The moisture content of the mixed material is 60%. Build a pile and ferment for 5 days. The pile is placed indoors. The environment temperature of the pile should be above 10℃. During this period, the pile should be turned up and down when the temperature in the pile rises above 70℃. , To supplement oxygen and cool down.

[0030] (2) Secondary fermentation: When the temperature of the primary mixture pile after the primary fermentation drops below 40℃, add rice husk biochar and EM bacteria liquid (commercially available) to the primary mixture pile, and the amount of rice husk biochar It is 30% of th...

Embodiment 2

[0035] A silicon-rich biochar organic fertilizer, which is prepared by the following method:

[0036] (1) One-time fermentation: mix 90 parts by weight of rice hulls, 10 parts by weight of rice bran and 0.4 parts by weight of Bacillus subtilis liquid (commercially available, with a viable number of more than 90 million cells / ml) to obtain a mixed material once, add water to adjust once The water content of the mixed material is 70%, and the one-time mixed material is piled up and fermented for 7 days, and stacked indoors. The ambient temperature of the stacking place should be above 10℃. During this period, the pile should be turned up and down when the temperature in the pile rises above 70℃. , To supplement oxygen and cool down.

[0037] (2) Secondary fermentation: When the temperature of the primary mixture pile after the primary fermentation drops below 40℃, add rice husk biochar and EM bacteria liquid (commercially available) to the primary mixture pile, and the amount of rice...

Embodiment 3

[0042] A silicon-rich biochar organic fertilizer, which is prepared by the following method:

[0043] (1) One-time fermentation: 85 parts by weight of rice hulls, 15 parts by weight of rice bran and 0.3 parts by weight of Bacillus subtilis liquid (commercially available, number of viable bacteria greater than 90 million / ml) are mixed and stirred to obtain a mixture of materials, and water is added to adjust once The moisture content of the mixed material is 65%. Build a pile of mixed materials for fermentation for 6 days, and stack them indoors. The environment temperature of the pile should be above 10℃. During the period, when the temperature in the pile rises above 70℃, the pile should be turned up and down. , To supplement oxygen and cool down.

[0044] (2) Secondary fermentation: When the temperature of the primary mixture pile after the primary fermentation drops below 40℃, add rice husk biochar and EM bacteria liquid (commercially available) to the primary mixture pile, and ...

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Abstract

The invention discloses a silicon-rich biochar organic fertilizer. Based on high Si content of rice husk, rich effective silicon available for rice is obtained by use of a triple fermentation process; besides, in combination with the relatively high pH value and silicon content and relatively large specific surface area of the rice husk biochar, the two materials, namely the fermented rice husk and the rice husk biochar, are combined to form complementation in a plurality of aspects; the silicon fertilizer in the fermented rice dusk is excellent in fast-acting property and advantageous for crops to utilize in short time; besides, the silicon in the rice husk biochar is slowly released under the microbial action so as to meet the demands of crops on silicon within long time.

Description

Technical field [0001] The invention relates to the technical field of fertilizer production, in particular to a silicon-rich biochar organic fertilizer. Background technique [0002] Although silicon is widely distributed in nature, its content is second only to oxygen, but there is almost no free silicon in nature, but most of it is crystalline and cannot be absorbed by plants. Available silicon in the soil, that is, silicon that can be dissolved in an acetic acid buffer with a pH of 4, varies with the type of soil parent material. In the acidic and slightly acidic soils in southern my country, the effective silicon content of the soil is low due to the strong desilicization and aluminization. Therefore, acidic and slightly acidic soils and soils such as latosol and red-yellow soil lack available silicon. However, in the calcareous soil in the north, due to the adsorption and fixation of silicic acid by a large amount of calcium carbonate in the soil, the effectiveness of sil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F15/00C05F17/00
CPCC05F5/00C05F11/00C05F17/50C05F5/002C05F11/08Y02W30/40
Inventor 钟哲科邵琼杨生茂吕豪豪
Owner 国家林业局竹子研究开发中心
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