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A pine bark-biochar matrix for the cultivation of Dendrobium officinale

A technology of biochar matrix and Dendrobium candidum, which is applied in the direction of planting substrate, culture medium, application, etc., can solve the problems of reduced air permeability and water permeability, many toxic substances in the substrate, and shortage of peat resources, so as to improve the appearance and quality, and promote the accumulation of potassium Effect of absorbing and increasing polysaccharide content

Active Publication Date: 2018-01-09
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Peat, pine bark, stones and other substrates are widely used in the planting of Dendrobium candidum. In actual production, peat resources are still in short supply. The growth of Dendrobium candidum is slow when planted with pine bark and stones. There are many toxic substances in the substrate, and the substrate decomposes and becomes breathable Therefore, the improvement of substrates and the development of new cultivation substrates have gradually been paid attention to.
Biochar has been widely concerned in improving soil and promoting plant growth, but the application effect of biochar in soilless culture substrate and its mutual influence are still poorly understood. Adding biochar to the original substrate has effects on the growth and Quality effects are even less reported

Method used

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  • A pine bark-biochar matrix for the cultivation of Dendrobium officinale
  • A pine bark-biochar matrix for the cultivation of Dendrobium officinale
  • A pine bark-biochar matrix for the cultivation of Dendrobium officinale

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Effect test

Embodiment 1

[0023] A kind of pine bark-biochar matrix that is used for the cultivation of Dendrobium candidum, is made by mixing the following components in mass percentage: pine bark (commercially available, particle diameter 12-20mm) 56%, peat 24%, biochar (grain Diameter is 2-5mm) 20%.

[0024] The biochar is prepared by mixing bamboo charcoal, bagasse charcoal and hickory shell charcoal according to the weight ratio of 1:1:3. The preparation method of the bamboo charcoal is obtained by pyrolyzing bamboo at 400° C. for 3 hours in an oxygen-free environment. The preparation method of the bagasse char is obtained by pyrolyzing the bagasse at 400° C. for 3 hours in an oxygen-free environment. The preparation method of the pecan shell charcoal is obtained by cracking pecan shells at 400° C. for 3 hours in an oxygen-free environment.

Embodiment 2

[0026] A kind of pine bark-biochar matrix that is used for the cultivation of Dendrobium officinale is made by mixing the following components in mass percentage: pine bark (commercially available, particle diameter 12-20mm) 67%, peat (commercially available) 28%, Biochar (particle size 2-5mm) 5%.

[0027] The biochar is prepared by mixing bamboo charcoal, bagasse charcoal and hickory shell charcoal according to the weight ratio of 1:1:3. The preparation method of the bamboo charcoal is obtained by pyrolyzing bamboo at 400° C. for 3 hours in an oxygen-free environment. The preparation method of the bagasse char is obtained by pyrolyzing the bagasse at 400° C. for 3 hours in an oxygen-free environment. The preparation method of the pecan shell charcoal is obtained by cracking pecan shells at 400° C. for 3 hours in an oxygen-free environment.

Embodiment 3

[0029] A kind of pine bark-biochar matrix that is used for the cultivation of Dendrobium candidum, is made by mixing the following components in mass percentage: pine bark (commercially available, particle diameter 12-20mm) 63%, peat 27%, biochar (grain Diameter is 2-5mm) 10%.

[0030] The biochar is prepared by mixing bamboo charcoal, bagasse charcoal and hickory shell charcoal according to the weight ratio of 1:1:3. The preparation method of the bamboo charcoal is obtained by pyrolyzing bamboo at 400° C. for 3 hours in an oxygen-free environment. The preparation method of the bagasse char is obtained by pyrolyzing the bagasse at 400° C. for 3 hours in an oxygen-free environment. The preparation method of the pecan shell charcoal is obtained by cracking pecan shells at 400° C. for 3 hours in an oxygen-free environment.

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Abstract

The invention discloses a pine bark-biochar matrix for culture of Dendrobium officinale. The pine bark-biochar matrix is prepared by mixing the following components in mass percentage: 56-67% of pine bark, 24-28% of peat and 5-20% of biochar. The pine bark-biochar matrix can substantially improve the contents of microelements necessary to a human body such as Zn, Co and the like in the Dendrobium officinale, can remarkably improve the polysaccharide content of the Dendrobium officinale, facilitates adsorption of potassium, and obviously improves the appearance and quality of the cultivated Dendrobium officinale.

Description

technical field [0001] The invention relates to a cultivation substrate of dendrobium candidum, in particular to a pine bark-biochar substrate for the cultivation of dendrobium candidum. Background technique [0002] Dendrobium candidum, also known as black knot grass, belongs to the epiphytic orchid of Orchidaceae, is a traditional precious Chinese medicinal material, and is known as "the first of the nine Chinese immortal grasses" by the people. Listed as the top grade in "Shen Nong's Materia Medica", it has the functions of nourishing yin and clearing heat, promoting body fluid and benefiting stomach, relieving cough and moistening lung, moistening throat and improving eyesight, improving human immunity, preventing and treating tumor and cardiovascular diseases, improving sleep, preventing cataract, prolonging life, etc. . Dendrobium officinale has very strict requirements on the growth environment and climatic conditions. Over the years, the source of Dendrobium offici...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G24/22A01G24/28A01G24/10
CPCA01G24/00
Inventor 吕豪豪杨生茂刘玉学汪玉瑛钟哲科
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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