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Compound functional organic bacterial fertilizer as well as preparation method and application thereof

A composite function, organic bacteria technology, applied in fertilization methods, botanical equipment and methods, biochemical equipment and methods, etc., can solve the problems of long time for soil remediation, low remediation efficiency, slow growth, etc., to improve remediation. Governance rate, cost savings, and growth-promoting effects

Pending Publication Date: 2022-06-07
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, because these plants are easily affected by heavy metal stress, they also have defects such as slow growth and small biomass, and the total amount of heavy metal enrichment is low, so the time for soil restoration is relatively long and the restoration efficiency is low.
[0003] At present, there is no special organic bacterial fertilizer suitable for arbor-shrub-grass micro-ecological flora, which can not only reduce the concentration of heavy metals in the soil environment, but also promote plant growth and can effectively improve the efficiency of phytoremediation of heavy metal-contaminated soil. Invented a kind of special organic bacterial fertilizer that is specially used in the arbor-shrub-grass micro-ecological flora to restore heavy metal-contaminated soil, which can reduce the toxicity of heavy metals in the soil environment and promote the growth of plants. It is of great significance to improve the growth of plants and improve the efficiency of phytoremediation of heavy metal-contaminated soils.

Method used

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  • Compound functional organic bacterial fertilizer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A compound functional organic bacterial fertilizer, in terms of parts by mass, comprises 96 parts of fermented mushroom residue organic fertilizer and 4 parts of compound functional microbial inoculum, wherein the composite functional microbial inoculum in terms of mass percentage includes: 42% Klebsiella inoculum, 25% by mass Penicillium inoculum, 25% by mass Aspergillus niger inoculum and 8% by mass Bacillus subtilis inoculum .

[0038] In this embodiment, the composite functional microbial inoculum is prepared by the following method: according to the mass percentage of each inoculum, Klebsiella inoculum, Penicillium inoculum, Aspergillus niger inoculum and Bacillus subtilis inoculum are mixed Mixed to obtain a composite functional microbial inoculum, in which the initial content of Klebsiella is 3.6 × 10 12 pcs / mL, the initial content of Penicillium was 4.8×10 11 pcs / mL, the initial content of Aspergillus niger was 3.0×10 12 pcs / mL, the initial content of Bacillu...

Embodiment 2

[0059] The application of a compound functional organic bacterial fertilizer in remediating heavy metal polluted soil is specifically to use the composite functional organic bacterial fertilizer to cooperate with micro-ecological flora to repair heavy metal contaminated soil (lead-zinc contaminated soil), comprising the following steps:

[0060] Experimental group: Taking the abandoned land of a lead-zinc mining area in Chenzhou as the experimental sample, according to the ratio of the number of trees, shrubs and herbs to 1:2.5:5, annual Paulownia saplings (arbor), annual oleander Seedlings (shrubs) and castor (herbs) were planted in lead-zinc-contaminated soil, where the planting spacing between arbor plants was 2.5m, and the holes were dug (0.5m×0.5m×0.5m), according to the mass ratio of 1:50, Mix the compound functional organic bacterial fertilizer prepared in Example 1 of the present invention with the backfill soil evenly, and backfill; the shrub plants are planted between...

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Abstract

The invention discloses a compound functional organic bacterial fertilizer as well as a preparation method and application thereof. The compound functional organic bacterial fertilizer comprises 96-98 parts of mushroom residue organic fertilizer and 2-4 parts of compound functional microbial agent, wherein the composite functional microbial agent comprises the following components in percentage by mass: 30%-45% of a klebsiella microbial agent, 20%-25% of a penicillium microbial agent, 15%-25% of an aspergillus niger microbial agent and 5%-20% of a bacillus subtilis microbial agent. The preparation method comprises the following steps: mixing the mushroom residue organic fertilizer with the composite functional microbial agent, and fermenting to obtain the composite functional organic bacterial fertilizer. The compound functional organic bacterial fertilizer disclosed by the invention has the advantages of being suitable for arbor-shrub-grass micro-ecological plant groups, being capable of reducing the concentration of heavy metals in a soil environment, promoting plant growth, effectively improving the efficiency of repairing heavy metal polluted soil by plants and the like, and being capable of promoting the plants to effectively repair the heavy metal polluted soil; good application values and application prospects are realized.

Description

technical field [0001] The invention belongs to the technical field of microbial preparations, and relates to a compound functional organic bacterial fertilizer and a preparation method and application thereof. Background technique [0002] The use of economical plant and microorganism joint remediation technology to treat heavy metal contaminated soil can organically combine soil remediation technology with biomass energy production, taking into account both ecological and economic benefits, and has broad application prospects. However, at present, many plant-microbe joint remediation technologies are often only aimed at a single plant, and most of them use hyperaccumulator plants and herbs are the main ones. Although this method has high heavy metal content in plants, its biomass is small, so the total amount of heavy metal absorption is small. , the removal efficiency is low; in addition, due to the single plant species, shallow root system, low soil-fixing effect of root...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/80C05F17/20A01C21/00A01B79/02A01G17/00A01G22/00C12N1/14C12N1/20C12N1/36C12R1/22C12R1/80C12R1/685C12R1/125
CPCC05G3/00C05G3/80C05F17/20A01C21/005A01B79/02A01G17/005A01G22/00C12N1/14C12N1/20C12N1/36Y02W30/40
Inventor 冯冲凌叶强王梦圆范慧欣
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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