Method for preparing soil-less culture substrate with agriculture and forestry organic waste material and soil-less culture substrate

A technology of soilless cultivation substrate and agricultural and forestry waste, applied in the field of utilization of agricultural and forestry organic waste, can solve the problems of difficult quality control, complex material composition, unstable properties, etc., and achieve excellent ventilation performance, stable physical and chemical properties, pH moderate effect

Inactive Publication Date: 2010-06-02
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The perlite is added to the soilless cultivation substrate, although the permeability of the cultivation substrate is improved and the aeration porosity is increased, but the perlite, like peat, is a non-renewable resource. In addition, the cultivation substrate needs to add diatomaceous earth as Adhesive, and the composition of the material is complex, the quality is not easy to control, the cost is high, and it is easy to cause losses due to unstable properties in the process of soilless cultivation

Method used

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  • Method for preparing soil-less culture substrate with agriculture and forestry organic waste material and soil-less culture substrate
  • Method for preparing soil-less culture substrate with agriculture and forestry organic waste material and soil-less culture substrate
  • Method for preparing soil-less culture substrate with agriculture and forestry organic waste material and soil-less culture substrate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. Preparation of materials:

[0040] The leaves of the agricultural and forestry wastes were air-dried to a water content of 15%, then pulverized, and then pressed into leaf granules with a diameter of 10-20 mm by using a granulator (Beijing Zhongyi Shenlong Machinery Co., Ltd.).

[0041] 2. Drying treatment:

[0042] Turn on the carbonization machine (Beijing Zhongyi Shenlong Machinery Co., Ltd., SL-II type), heat up to 100 ° C, then add the prepared leaf particles, and dry them at a temperature of 100 ° C to obtain 10% moisture. particles;

[0043] 3. The first pyrolysis treatment:

[0044] Continue heating to increase the temperature in the carbonization machine and maintain it at 150°C, while controlling the oxygen volume percentage in the carbonization machine to be 10%, and carry out the first pyrolysis treatment under the above conditions, wherein the pyrolysis treatment time is for 20min.

[0045] 4. The second pyrolysis treatment:

[0046] Continue heatin...

Embodiment 2

[0066] 1. Preparation of materials:

[0067] The mixed crop straws (wheat straw, sunflower straw and rice straw) were air-dried until the water content was 20%, then pulverized, and then pressed into mixed particles with a diameter of 10 mm by a granulator.

[0068] 2. Drying treatment:

[0069] Turn on the carbonization machine, heat up to 105°C, then add the prepared mixed granules, and dry them at a temperature of 105°C to obtain granules with a moisture content of 8%;

[0070] 3. The first pyrolysis treatment:

[0071] Continue heating to increase the temperature in the carbonization machine and maintain it at 130 ° C, while controlling the oxygen volume percentage in the carbonization machine to be 8%, and perform the first pyrolysis treatment under the conditions, wherein the pyrolysis treatment time 15min.

[0072] 4. The second pyrolysis treatment:

[0073] Continue heating to increase the temperature in the carbonization machine and maintain it at 220 ° C, while c...

Embodiment 3

[0078] 1. Preparation of materials:

[0079] The crop stalks and wheat straws are air-dried until the water content is 15%, then pulverized, and then pressed into mixed granules with a diameter of 15-20 mm by using a granulator.

[0080] 2. Drying treatment:

[0081] Turn on the carbonization machine, heat up to 105°C, then add the prepared mixed granules, and dry them at a temperature of 110°C to obtain granules with a moisture content of 9%;

[0082] 3. The first pyrolysis treatment:

[0083] Continue heating to increase the temperature in the carbonization machine and maintain it at 160°C, while controlling the oxygen volume percentage in the carbonization machine to be 7%, and perform the first pyrolysis treatment under the conditions, wherein the pyrolysis treatment time for 20min.

[0084] 4. The second pyrolysis treatment:

[0085] Continue heating to increase the temperature in the carbonization machine and maintain it at 200 ° C, while controlling the oxygen volum...

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Abstract

The invention discloses a method for preparing a soil-less culture substrate with agriculture and forestry organic waste material and the soil-less culture substrate. The method comprises the step of secondarily pyrolysing the agriculture and forestry organic waste material and collecting solid products to obtain the culture substrate, wherein the temperature of the secondary pyrolysis is higher than that of a first pyrolysis. The preparation method has simple technology, convenient operation, high product yield, can prepare the soil-less culture substrate with good permeability and good physiochemical performance index which reaches the requirement of the soil-less culture substrate, can provide good and stable substrate environment for plants, and is suitable for plant cultivation.

Description

technical field [0001] The invention relates to a utilization method of agricultural and forestry organic waste, in particular to a method for preparing a cultivation substrate by utilizing the agricultural and forestry organic waste and the prepared cultivation substrate. Background technique [0002] In the production process of modern gardens, the cultivation substrate has been widely used in the production process of flower seedling cultivation, lawn cultivation, economic forest seedling cultivation, soil improvement and organic fertilizer manufacturing, and with the development of economy, the scale of modern garden industry is also expanding rapidly. , resulting in increasing dependence and demand on the substrate. Substrate production raw materials are mainly divided into two categories: organic matter and inorganic matter. Among the cultivation substrates required for the production of agriculture, forestry, and flower industries in my country, the substrate products...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00
CPCY02P60/21
Inventor 孙向阳索琳娜陈刚
Owner BEIJING FORESTRY UNIVERSITY
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