A kind of preparation method and application of em nano biochar-based soil conditioner

A soil conditioner and biochar technology, applied in the fields of soil improvement and soil environment repair, can solve problems such as soil obstacles, and achieve the effects of eliminating the fragrant melon, increasing the activity, and improving the vitality of the root system of the crop.

Active Publication Date: 2020-12-11
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Purpose of the invention: To solve the problems of soil barriers and environmental pollution caused by the extensive use of chemical fertilizers and pesticides, use straw biochar as the main raw material, prepare conditioners by modifying and immobilizing compound microorganisms, and apply them in soil repair to achieve improved The purpose of polluting substances such as heavy metals and pesticides in soil and passivation soil

Method used

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  • A kind of preparation method and application of em nano biochar-based soil conditioner
  • A kind of preparation method and application of em nano biochar-based soil conditioner
  • A kind of preparation method and application of em nano biochar-based soil conditioner

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Embodiment 1

[0028]Mix EM stock solution, honey, solid calcium sulfate and distilled water at a mass percentage of 6%:6%:6%:82%, and transfer them into the reaction flask, and put them in a constant temperature incubator for 6 days under airtight conditions. , Set the fermentation temperature to 37℃, the shaker speed to 150r / min, filter to obtain the EM active calcium solution; then crush the dried corn stalks, pass through a 2mm sieve, and press the corn stalk powder: kaolin binder in a stainless steel tank: Nanometer ferric oxide = 85: 7: 8 mass percentage uniformly mixed and compacted, covered and sealed, put in a muffle furnace, cracked at 550 ℃ for 55 minutes; then take out the above mixture into a vacuum dryer, and cool At room temperature, the prepared nano-biomass charcoal is pulverized through a 100-mesh sieve, and then molded into the nano-biomass charcoal: EM active calcium solution = 93%: 7% in the intelligent mode ball forming machine, and the particle diameter is controlled at 5mm ...

Embodiment 2

[0036]Mix the EM stock solution, honey, solid calcium acid and distilled water at a mass percentage of 5%: 7%: 8%: 80%, and transfer them into the reaction flask, and put them in a constant temperature incubator for fermentation under airtight conditions. 7 Days, set the fermentation temperature to 35°C, the shaker speed to 150r / min, and filter to obtain the EM active liquid; then crush the dried corn stalks, pass through a 2mm sieve, and press the corn stalk powder: kaolin binder in a stainless steel tank Nanometer ferric oxide = 82: 8: 10 mass percentage, uniformly mixed and compacted, covered and sealed, put in a muffle furnace, cracked at 520 ℃ for 60 minutes; then take out the above mixture into a vacuum dryer, and cool At room temperature, grind the prepared nano-biomass charcoal through a 100-mesh sieve, and then press nano-biomass charcoal: EM active calcium solution = 92%: 8% in the intelligent mode ball forming machine, and the particle diameter is controlled at 5mm In bet...

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Abstract

The invention discloses a preparation method and application of an EM nano biological charcoal based soil conditioner. The preparation method comprises the following steps: firstly, mixing straw powder, nano manganese oxide and kaolin and preparing the mixture into a modified nano straw biological charcoal carrier under a high-temperature condition; then, immobilizing an active EM calcium solution on the modified nano straw biological charcoal carrier to prepare an EM nano biological charcoal sphere for conditioning soil. A production technology of the EM nano biological charcoal based soil conditioner disclosed by the invention is simple; the EM nano biological charcoal based soil conditioner has nitrogen fixing, phosphorus dissolving, potassium dissolving, water retention and antibacterial substance secretion functions and the like; the soil moisture and the effectiveness of elements including N, P, K, Ca, Fe and the like in the soil are remarkably improved; the crop diseases can be reduced and the EM nano biological charcoal based soil conditioner has a relatively strong adsorption capability on heavy metal, pesticide residues and the like and can be used for remarkably improving a soil structure.

Description

Technical field[0001]The invention relates to the technical field of soil improvement and soil environment maintenance, in particular to a preparation method and application of an EM nano biochar-based soil conditioner.Background technique[0002]Biochar is a kind of highly aromatic solid object produced by pyrolysis and carbonization of plant biomass under the condition of complete or partial hypoxia. Biochar is highly stable, has strong adsorption capacity, can maintain soil moisture and nutrients, and is a good soil amendment. Common biochar includes straw charcoal, bamboo charcoal, rice husk charcoal and so on. In biochar, straw charcoal has abundant raw materials, low price, relatively simple production process, and broad development and utilization prospects. According to statistics, the world’s annual output of straw is about 2.9 billion tons. The replacement of wood-fired charcoal with straw biochar is conducive to protecting forest resources, maintaining ecological balance, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/80C05G5/12C05F17/50C01B32/05
CPCC05D3/00C05F17/00C05G3/80C05D9/00C05D9/02C05F11/08Y02W30/40
Inventor 邵孝候关雯璐杨立武杨绪陈名樑史佳枫高士莘李敏慧
Owner HOHAI UNIV
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