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A kind of preparation method of functional organic fertilizer for soil restoration

A soil remediation and organic fertilizer technology, applied in the field of preparation of functional organic fertilizers for soil remediation, can solve problems such as agricultural economic losses, and achieve the effects of promoting crop growth, improving crop quality, and improving water retention.

Inactive Publication Date: 2015-10-28
合肥市东方美捷分子材料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cd, Cu, Hg, Pb, As, etc. in grains and vegetables are seriously exceeded, causing huge economic losses to agriculture

Method used

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  • A kind of preparation method of functional organic fertilizer for soil restoration
  • A kind of preparation method of functional organic fertilizer for soil restoration

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Preparation of functional organic fertilizer

[0038] The straw is crushed and mixed with cyanobacteria in a mass ratio of 1:10 to obtain a mixture, and then add a biomass conversion compound with a mixture mass of 0.5‰ and a biomass conversion inducing material with a mixture mass of 0.8‰ to the mixture. After homogenization, it is piled and fermented at room temperature for 10 days to obtain semi-solid organic fertilizer. The semi-solid organic fertilizer obtained after fermentation is compounded with diatomaceous earth, biomass power plant carbon ash and heavy metal ion chelating agent in a mass ratio of 1000:50:50:1 to obtain functional organic fertilizer for soil restoration.

[0039] The composite inoculant for biomass conversion is composed of 30% pseudomonas, 30% Bacillus subtilis, 20% Aspergillus oryzae, and 20% Rhizopus; the content of viable microorganisms of the composite inoculant for biomass conversion ≥500 million pieces / ml.

[0040] The biomass conversion ...

Embodiment 2

[0053] 1. Preparation of functional organic fertilizer

[0054] The stalks are crushed and mixed with cyanobacteria in a mass ratio of 5:10 to obtain a mixture, and then add a biomass conversion compound with a mixture mass of 2‰ and a biomass conversion inducing material with a mixture mass of 2.5‰ to the mixture. After homogenization, it is piled and fermented at room temperature for 8 days to obtain semi-solid organic fertilizer. The semi-solid organic fertilizer obtained after fermentation is compounded and granulated with attapulgite, biomass carbon dust and heavy metal ion chelating agent at a mass ratio of 1000:100:150:5 to obtain functional organic fertilizer for soil remediation.

[0055] The composite inoculant for biomass conversion is composed of 30% pseudomonas, 30% Bacillus subtilis, 20% Aspergillus oryzae, and 20% Rhizopus; the content of viable microorganisms of the composite inoculant for biomass conversion ≥500 million pieces / ml.

[0056] The biomass conversion in...

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Abstract

The invention discloses a preparation method of a functional organic fertilizer for soil restoration. The method comprises the following steps: mixing crushed straws with blue-green algae according to the mass ratio of (1-5):10 to obtain a mixture, and then adding a biomass-transformed complex microbial inoculant and a biomass-transformed inductive material to the mixture; evenly mixing and then carrying out conventional stacking fermentation for 5-15 days, so as to obtain a semi-solid organic fertilizer; and mixing and pelletizing the semi-solid organic fertilizer, clay, biomass carbon ash and a heavy metal ion chelating agent according to the ratio of 1000:(50-200):(50-150):(1-5), so as to obtain the functional organic fertilizer for soil restoration. The organic fertilizer disclosed by the invention has a persistent slow-release fertilizer effect, and can adsorb, chelate and immobilize the heavy metal ions in a deactivation manner, soil fleeciness is facilitated, the moisture retention and the breathability are improved, rooting of plants is facilitated, formation of beneficial components of soil microelements and the like is optimized, the heavy metal-polluted soil is effectively restored, and secondary pollution of the soil is not caused.

Description

1. Technical Field [0001] The invention relates to a method for preparing a functional organic fertilizer for soil restoration, which is used for the treatment of heavy metal contaminated soil. 2. Background technology [0002] Due to the excessive application of pesticides and herbicides, the disorderly discharge of industrial pollution caused surface water and groundwater pollution to directly pollute cultivated land. The area of ​​cultivated land contaminated by heavy metals in my country accounts for about 1 / 5 of the total cultivated land. In my country's sewage irrigation areas, 65% of the land is polluted by heavy metals, of which 47% are lightly polluted, 10% are moderately polluted, and 8% are severely polluted. Cd, Cu, Hg, Pb, As, etc. in food and vegetables exceed the standard seriously, causing huge economic losses to agriculture. It is more economical to repair heavy metal contaminated soil by in-situ treatment methods, such as applying adsorption, immobilization, ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/04C05G3/80
Inventor 朱守诚武艳漆静秋褚维发程世林杨宏星刘焕霞
Owner 合肥市东方美捷分子材料技术有限公司
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