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A preparation method of soilless plant cultivation substrate and the substrate prepared by the method

A technology for cultivating substrates and plants, applied in the field of utilization of agricultural and forestry organic waste, can solve the problems of high nitrogen loss, low material utilization rate, long fermentation cycle, etc., and achieve the goals of improving microbial communities, short fermentation cycle, and increasing utilization rate Effect

Inactive Publication Date: 2015-11-11
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a method for preparing a soilless plant cultivation substrate aiming at the problems of low material utilization rate, long fermentation cycle and high nitrogen loss in the current fermentation process of agricultural and forestry wastes

Method used

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  • A preparation method of soilless plant cultivation substrate and the substrate prepared by the method
  • A preparation method of soilless plant cultivation substrate and the substrate prepared by the method
  • A preparation method of soilless plant cultivation substrate and the substrate prepared by the method

Examples

Experimental program
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Effect test

Embodiment 1

[0069] 1. Pretreatment of agricultural and forestry waste raw materials

[0070] Use a pulverizer to crush the branches of garden waste (the pruned branches of willow, locust tree, poplar, etc.) into particles with a particle size of 10-25mm to obtain waste particles, and simultaneously measure the organic carbon content and nitrogen of the waste particles content, and the results are shown in Table 1.

[0071] Determination of the nitrogen content of waste particles by the Kjeldahl method;

[0072] Potassium dichromate volumetric method-external heating method is used to measure the organic carbon content in the cultivation mixed substrate. The specific measurement method is as follows: After adding the air-dried cultivation mixed substrate into the dry hard test tube, add K 2 Cr 2 o 7 Standard solution and concentrated H 2 SO 4 , then put the test tube at 170-180°C to boil the liquid in the test tube for 5 minutes, then pour out the contents of the test tube, titrate wi...

Embodiment 2

[0112] 1. Pretreatment of agricultural and forestry waste raw materials

[0113] Using a pulverizer (Beijing Zhongyi Shenlong Machinery Co., Ltd.) to crush the garden waste (the pruned branches of willow, locust tree, poplar, etc., fallen leaves, and flowers) into particles with a particle size of 15-20mm to obtain waste The organic carbon content and nitrogen content of the waste particles were measured at the same time, and the results are shown in Table 1.

[0114] 2. Preparation of fermentation catalyst mixture

[0115] 2A) Add rhamnolipids to water, mix well, and prepare rhamnolipid aqueous solution, wherein the mass ratio of rhamnolipids to water is 1:1;

[0116] 2B) Add vermicompost and medical stone to rhamnolipid aqueous solution and mix well to prepare a fermentation catalyst mixed solution, wherein the weight ratio of vermicompost, medical stone and rhamnolipid is 20:40:1 ;

[0117] 2C) Drying the fermentation catalyst mixed solution until the water content is 5%...

Embodiment 3

[0134] 1. Pretreatment of agricultural and forestry waste raw materials

[0135]1-1) Use a pulverizer (Beijing Zhongyi Shenlong Machinery Co., Ltd.) to pulverize agricultural waste (corncobs, straw) into particles with a particle size of 20-25mm to obtain waste particles, and simultaneously determine the organic matter of the waste particles. Carbon content and nitrogen content, the measurement results are shown in Table 1.

[0136] 2. Preparation of fermentation catalyst mixture

[0137] 2A) Add rhamnolipid to water, mix well, and prepare rhamnolipid aqueous solution, wherein the mass ratio of rhamnolipid to water is 1:2;

[0138] 2B) Add vermicompost and medical stone to rhamnolipid aqueous solution, mix well to prepare a fermentation catalyst mixed solution, wherein the weight ratio of vermicompost, medical stone and rhamnolipid is 17:38:1 ;

[0139] 2C) Drying the fermentation catalyst mixed solution until the water content is 3%, crushing and passing through a 48-mesh ...

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Abstract

The invention discloses a soilless plant cultivation substrate and a preparation method thereof. The preparation method of the cultivation substrate disclosed by the invention comprises the following steps: firstly, uniformly mixing agricultural and forestry waste, water, a fermentation catalyst, a fermentation fungicide, bamboo vinegar and / or pyroligneous liquor to carry out fermentation treatment for the first time to prepare a first fermentation substrate; and then, adding the fermentation catalyst, the water, the bamboo vinegar and / or the pyroligneous liquor into the first fermentation substrate to carry out fermentation treatment for the second time to obtain the soilless plant cultivation substrate, wherein the fermentation catalyst comprises rhamnolipid. The plant cultivation substrate prepared by the preparation method disclosed by the invention is balanced in nutrition, high in nutritional ingredient content, reasonable in structure, stable in physical property and convenient for being absorbed by plants, satisfies plant growth needs, improves survival rate for plant cultivation and ornamental effect.

Description

technical field [0001] The invention relates to a method for utilizing agricultural and forestry organic waste, in particular to a method for preparing a cultivation substrate by using agricultural and forestry organic waste. Background technique [0002] With the rapid development of urban greening in major cities in China, the amount of agricultural and forestry waste such as litter (plant litter), tree branch trimmings, lawn trimmings, weeds and residual flowers, corn cobs, rice husks, etc. is also increasing. bigger and bigger. For a long time, in order to pursue cleanliness and beauty, this kind of agricultural and forestry waste has often been regarded as urban solid waste and has become the object of removal for green space maintenance and management. The degree of cleaning of litter has even become an important indicator for measuring the level of maintenance. However, due to improper treatment, a large number of agricultural and forestry wastes have not been fully ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05F17/00
CPCY02W30/43Y02W30/40
Inventor 孙向阳张璐龚小强
Owner BEIJING FORESTRY UNIVERSITY
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