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Cadmium-reducing soil-improving functional organic fertilizer

A soil improvement and functional technology, applied in the direction of organic fertilizers, soil conditioning materials, alkaline orthophosphate fertilizers, etc., can solve the problems of cadmium reduction and ineffective reduction of cadmium, achieve good adsorption and inhibit the absorption of cadmium Effect

Pending Publication Date: 2021-05-04
湖南省辰河生态农业科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Soil improvement mainly refers to the action of improving the soil through physical, chemical or microbial means. At present, soil conditioning can be carried out with soil conditioners. The existing organic fertilizers have no obvious effect on reducing cadmium in the soil. Therefore, it is necessary to invent a An organic fertilizer that has a good reduction effect on cadmium in the soil

Method used

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  • Cadmium-reducing soil-improving functional organic fertilizer
  • Cadmium-reducing soil-improving functional organic fertilizer

Examples

Experimental program
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Effect test

Embodiment 1

[0022] A cadmium-reducing soil improvement functional organic fertilizer, comprising the following components by weight:

[0023] 12 parts of modified zeolite, 2 parts of composite bacterial agent, 2 parts of algae powder, 12 parts of modified humic acid, 20 parts of crop straw, 30 parts of livestock manure, 10 parts of urea, 4 parts of diammonium phosphate; the composite bacterial agent Including Bacillus amyloliquefaciens and Bacillus subtilis, the mass ratio of Bacillus amyloliquefaciens and Bacillus subtilis in the composite bacterial agent is 1:1, the live bacteria of Bacillus amyloliquefaciens and Bacillus subtilis in the composite bacterial agent The number is 200 million per gram, and the algae powder is Chaetoceros powder.

[0024] The modified zeolite is prepared by the following method: the zeolite is pulverized through a 200 mesh sieve, then packed into a beaker, and the 2mol / L sodium hydroxide solution of 8 times the zeolite quality is added in the beaker equipped...

Embodiment 2

[0028] A cadmium-reducing soil improvement functional organic fertilizer, comprising the following components by weight:

[0029] 13 parts of modified zeolite, 2.5 parts of composite bacterial agent, 2.5 parts of algae powder, 13 parts of modified humic acid, 25 parts of crop straw, 35 parts of livestock manure, 11 parts of urea, and 5 parts of diammonium phosphate; Including Bacillus amyloliquefaciens and Bacillus subtilis, the mass ratio of Bacillus amyloliquefaciens and Bacillus subtilis in the composite bacterial agent is 1:1, the number of live bacteria of Bacillus amyloliquefaciens and Bacillus subtilis in the composite bacterial agent Both are 200 million per gram, and the algae powder is Chaetoceros powder.

[0030] The modified zeolite is prepared by the following method: the zeolite is pulverized through a 200 mesh sieve, then packed into a beaker, and the 2mol / L sodium hydroxide solution of 8 times the zeolite quality is added in the beaker equipped with the zeolite...

Embodiment 3

[0034] A cadmium-reducing soil improvement functional organic fertilizer, comprising the following components by weight:

[0035] 14 parts of modified zeolite, 3 parts of composite bacterial agent, 3 parts of algae powder, 14 parts of modified humic acid, 30 parts of crop straw, 40 parts of livestock manure, 12 parts of urea, 6 parts of diammonium phosphate; the composite bacterial agent Including Bacillus amyloliquefaciens and Bacillus subtilis, the mass ratio of Bacillus amyloliquefaciens and Bacillus subtilis in the composite bacterial agent is 1:1, the number of live bacteria of Bacillus amyloliquefaciens and Bacillus subtilis in the composite bacterial agent Both are 200 million per gram, and the algae powder is Chaetoceros powder.

[0036] The modified zeolite is prepared by the following method: the zeolite is pulverized through a 200 mesh sieve, then packed into a beaker, and the 2mol / L sodium hydroxide solution of 8 times the zeolite quality is added in the beaker equ...

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Abstract

The invention is applicable to the technical field of organic fertilizers, and provides a cadmium-reducing soil-improving functional organic fertilizer which is prepared from the following ingredients in parts by weight: 12 to 16 parts of modified zeolite, 2 to 4 parts of complex microbial inoculants, 2 to 4 parts of algae powder, 12 to 16 parts of modified humic acid, 20 to 40 parts of crop straws, 30 to 50 parts of livestock excrement, 10 to 14 parts of urea and 4 to 8 parts of diammonium phosphate. Through the modified zeolite and the algae powder, the organic fertilizer can have a good adsorption effect on cadmium in soil; through the combined action of the complex microbial inoculant and the modified humic acid, cadmium in the soil can be further adsorbed and passivated, and the function of adjusting soil nutrients is achieved, so that the cadmium absorption of crops can be effectively inhibited.

Description

technical field [0001] The invention belongs to the technical field of organic fertilizers, and in particular relates to a cadmium-reducing soil improvement functional organic fertilizer. Background technique [0002] Organic fertilizers refer to carbon-containing materials that are mainly derived from plants and (or) animals and are applied to the soil to provide plant nutrition as their main function. They are processed from biomass, animal and plant waste, and plant residues to eliminate the Toxic and harmful substances, rich in a large number of beneficial substances, are the main nutrients for green food production. Due to unreasonable industrial discharge, poor treatment of solid waste (especially urban garbage), sewage irrigation, agricultural sludge and application of fertilizers containing heavy metal elements, the content of heavy metal cadmium in the soil has increased sharply, resulting in increasingly serious cadmium pollution in farmland. , Containing a large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/80C09K17/40C09K101/00
CPCC05B7/00C05G3/80C09K17/40C09K2101/00C05C9/00C05D9/00C05F3/00C05F11/00C05F11/02C05F11/08
Inventor 向云成彭志红刘飞夏文发
Owner 湖南省辰河生态农业科技股份有限公司