A cadmium-reducing charcoal-based multi-element compound soil conditioner for paddy rice and applications thereof

A technology of soil conditioner and biochar, applied in the direction of soil conditioning materials, applications, fertilizer mixtures, etc., can solve environmental pollution and other problems, achieve the effect of reducing continuous cropping obstacles, reducing absorption and accumulation coefficient, and improving soil fertility

Inactive Publication Date: 2016-11-09
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Another object of the present invention is to provide the application of the soil conditioner in improving soil pH value, increasing soil carbon sequestration and reducing cadmium content in agr

Method used

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  • A cadmium-reducing charcoal-based multi-element compound soil conditioner for paddy rice and applications thereof
  • A cadmium-reducing charcoal-based multi-element compound soil conditioner for paddy rice and applications thereof
  • A cadmium-reducing charcoal-based multi-element compound soil conditioner for paddy rice and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 600.00kg of rice husk charcoal, 100.00kg of rice husk extract, 60.00kg of cytokinin producing bacteria agent, 200.00kg of humic acid powder and 40.00kg of sepiolite are put into a mixer and mixed evenly, and then extruded by a mechanical granulator Into a round granular shape. The rice cadmium-reducing biochar-based multi-component compound soil conditioner of the present invention is obtained.

Embodiment 2

[0034] 750.00kg of rice husk charcoal, 50.00kg of rice husk extract, 20.00kg of cytokinin producing bacteria agent, 100.00kg of humic acid powder and 80.00kg of sepiolite are put into a mixer and mixed evenly, and then extruded by a mechanical granulator Into a round granular shape. The rice cadmium-reducing biochar-based multi-component compound soil conditioner of the present invention is obtained.

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PUM

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Abstract

A cadmium-reducing charcoal-based multi-element compound soil conditioner for paddy rice and applications thereof are disclosed. The soil conditioner includes rice hull charcoal, a rice hull extract liquid, a cytokinin producing strain agent, humic acid raw powder and sepiolite. The soil conditioner can be used for paddy rice fields of each paddy rice producing area, increases the pH value of acidified soil after continuous paddy rice cropping, and reduces the cadmium content of rice grains, thus improving rice quality. In addition, environment pollution in a rice hull charcoal production process can be overcome, high-value production of the rice hull charcoal is directed and the added value of the rice hull charcoal is increased.

Description

technical field [0001] The invention relates to a rice cadmium-reducing biochar-based multi-component compound soil conditioner and its application, in particular to using the soil conditioner in paddy fields in various rice production areas in my country to increase the pH value of paddy field soil in continuous cropping rice and improve soil pH. Inorganic carbon content, soluble silicon content and organic matter content, in-situ passivation repair of soil cadmium in heavy metal cadmium pollution areas, and reduction of cadmium content in rice grains; it belongs to the field of crop fertilizers. Background technique [0002] Due to the decreasing area of ​​cultivated land in the world, rice continuous cropping in some double-cropping rice production areas has caused serious soil acidification, and heavy metal cadmium pollution has continued to increase. Therefore, research on heavy metal cadmium-contaminated soil remediation and treatment technologies is particularly importa...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C09K17/40A01C21/00C09K101/00C09K109/00C05G3/80
CPCA01C21/00C05D9/00C05G3/00C05G3/80C09K2101/00C09K2109/00C05F11/08C05F11/02
Inventor 王惠群易自力陈亚波肖亮兰时乐
Owner HUNAN AGRICULTURAL UNIV
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