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Soilless plant culturing medium and preparation method thereof

A technology for cultivating substrates and plants is applied in the field of utilization of agricultural and forestry organic wastes, and can solve the problems of low material utilization rate, long fermentation period, and high nitrogen loss.

Active Publication Date: 2016-12-07
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 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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  • Soilless plant culturing medium and preparation method thereof
  • Soilless plant culturing medium and preparation method thereof
  • Soilless plant culturing medium and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] 1. Pretreatment of agricultural and forestry waste raw materials

[0073] 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 15-20 mm 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.

[0074] The nitrogen content of waste particles was determined by the Kjeldahl method; the organic carbon content of waste particles was determined by the potassium dichromate volumetric method-external heating method. The specific determination method is as follows: add air-dried After the waste pellets, 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 with the standard solution of ferrous sulfate, and calculate the org...

Embodiment 2

[0118] 1. Pretreatment of agricultural and forestry waste raw materials

[0119]Using a pulverizer (Beijing Zhongyi Shenlong Machinery Co., Ltd.) to crush the garden waste (the pruned branches of willow, pagoda tree, poplar, etc., fallen leaves, and flowers) into particles with a particle size of 20-25mm, the obtained 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.

[0120] 2. Preparation of fermentation conditioner mixture

[0121] 2A) Add β-cyclodextrin into hot water at 30°C, mix well, and prepare an aqueous solution of β-cyclodextrin, wherein the mass ratio of water to β-cyclodextrin is 1:0.05;

[0122] 2B) Add sawdust and fish pond bottom sludge into the β-cyclodextrin aqueous solution and mix evenly to prepare a fermentation conditioner mixed solution, wherein the weight ratio of fish pond bottom sludge, sawdust and β-cyclodextrin is 25:45: 1;

[0123] 2C) Drying the fer...

Embodiment 3

[0139] 1. Pretreatment of agricultural and forestry waste raw materials

[0140] 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 content of the waste particles. Carbon content and nitrogen content, the measurement results are shown in Table 1.

[0141] 2. Preparation of fermentation conditioner mixture

[0142] 2A) Add β-cyclodextrin into hot water (32°C), mix well, and prepare β-cyclodextrin aqueous solution, wherein the mass ratio of water to β-cyclodextrin is 1:0.07;

[0143] 2B) Add sawdust and fish pond bottom sludge to the β-cyclodextrin aqueous solution and mix evenly to prepare a fermentation conditioner mixed solution, wherein the weight ratio of sawdust, fish pond bottom sludge to β-cyclodextrin is 27:48: 1;

[0144] 2C) drying the fermentation conditioner mixed solution unt...

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Abstract

The invention discloses a soilless plant culturing medium and a preparation method thereof. The preparation method includes the steps of: uniformly mixing forestry and agricultural wastes, water, a fermentation conditioner, a fermentation inoculant, and bamboo vinegar liquid and / or wood vinegar liquid to perform primary fermentation to obtain a first fermentation substrate; adding the fermentation conditioner, water and the bamboo vinegar liquid and / or wood vinegar liquid to perform secondary fermentation. The fermentation conditioner includes [beta]-cyclodextrin, sawdust and bottom mud from fish pool. The plant culturing medium has balanced nutrients, is high in content of the nutrients, has reasonable structure and stable physical characters, is convenient to absorb by plants, satisfies demand of growth of plants, and improves survival rate and ornamental effect of plants.

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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IPC IPC(8): C05F15/00C05F17/00A01G31/00
CPCA01G31/00A01G24/23C05F5/002C05F17/50C05F7/00C05F11/00C05F11/08Y02W30/40Y02P60/21
Inventor 张璐孙向阳
Owner BEIJING FORESTRY UNIVERSITY
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