A silicon-rich biochar organic fertilizer

A technology of biochar and organic fertilizer, which is applied in the treatment of biological organic parts, the preparation of organic fertilizers and organic fertilizers, etc., can solve problems such as limited improvement effect, poor soil structure, and difficulty in decomposing, so as to improve yield and quality, and is beneficial to Crop absorption and utilization, continuous effect of fertilizer efficiency

Inactive Publication Date: 2017-04-12
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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  • A silicon-rich biochar organic fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0029] (1) Primary fermentation: mix 80 parts by weight of rice husks, 20 parts by weight of rice bran and 0.2 parts by weight of Bacillus subtilis liquid (commercially available, the number of viable bacteria is greater than 90 million / ml) to obtain a primary mixed material, add water to adjust once The water content of the mixed material is 60%. The primary mixed material is piled up and fermented for 5 days, and piled up indoors. The ambient temperature of the piled place should be above 10°C. During this period, when the temperature in the pile rises above 70°C, the piled material needs to be turned up and down. , to replenish oxygen and cool down.

[0030] (2) Secondary fermentation: when the temperature of the primary mixture pile after the primary fermentation has dropped to below 40°C, add rice husk biochar and EM bacterial liquid (commer...

Embodiment 2

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

[0036](1) Primary fermentation: Mix 90 parts by weight of rice husks, 10 parts by weight of rice bran and 0.4 parts by weight of Bacillus subtilis liquid (commercially available, the number of live bacteria is greater than 90 million / ml) to obtain a primary mixed material, add water to adjust once The water content of the mixed material is 70%, and the primary mixed material is piled up and fermented for 7 days, and piled up indoors. The ambient temperature of the piled place should be above 10°C. , to replenish oxygen and cool down.

[0037] (2) Secondary fermentation: when the temperature of the primary mixture pile after the primary fermentation has dropped to below 40°C, add rice husk biochar and EM bacterial liquid (commercially available) to the primary mixture pile, the amount of rice husk biochar It is 60% of primary mixture pile weight,...

Embodiment 3

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

[0043] (1) Primary fermentation: mix 85 parts by weight of rice husks, 15 parts by weight of rice bran and 0.3 parts by weight of Bacillus subtilis liquid (commercially available, the number of viable bacteria is greater than 90 million / ml) to obtain a primary mixture, add water to adjust once The water content of the mixed material is 65%. The primary mixed material is piled and fermented for 6 days, and it is piled up indoors. The ambient temperature of the piled place should be above 10°C. During this period, when the temperature in the pile rises above 70°C, it is necessary to turn the pile up and down. , to replenish oxygen and cool down.

[0044] (2) Secondary fermentation: when the temperature of the primary mixture pile after the primary fermentation has dropped to below 40°C, add rice husk biochar and EM bacterial liquid (commercially av...

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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, and its content is second only to oxygen, there is almost no free silicon in nature, but most of it is in a crystalline state and cannot be absorbed and utilized by plants. The available silicon in the soil, that is, the silicon that can be dissolved in the acetate buffer solution with a pH value of 4, varies with the type of parent material of the soil. In the acidic and slightly acidic soils in southern my country, due to the strong desiliconization and aluminization of the soil, the soil available silicon content is low. Therefore, acidic, slightly acidic soil, brick red soil, red yellow soil and other soils lack available silicon. In the calcareous soil in the north, due to the adsorption and fixation of silicic acid by a large amount of c...

Claims

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Application Information

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Patent Type & Authority Patents(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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