Mushroom residue culture medium suitable for growth of Chinese pine and method for precisely and accurately regulating culture medium

Abstract

The invention discloses a mushroom residue culture medium suitable for growth of Chinese pine and a method for precisely and accurately regulating the culture medium. The mushroom residue culture medium suitable for growth of Chinese pine is prepared from the three types of mushroom residues which are different in grain size: 8-14% of the mushroom residue with grain size being less than 0.5mm, 18-50% of the mushroom residue with grain size being more than or equal to 0.5mm and less than 2mm, and 25-73% of the mushroom residue with grain size being more than or equal to 2mm and less than 5mm. The method for precisely and accurately regulating the culture medium comprises the following steps: gradually screening the mushroom residues by sampling screens with bore diameters of 0.5mm, 2mm and 5mm to divide the mushroom residues into three levels: the mushroom residue with grain size being less than 0.5mm, the mushroom residue with grain size being more than or equal to 0.5mm and less than 2mm, and the mushroom residue with grain size being more than or equal to 2mm and less than 5mm; and then, weighing in percentage by weight and uniformly mixing to prepare a culture matrix. According to the method, the physical and chemical properties of the Chinese pine matrix are precisely and accurately controlled, the mushroom residue culture medium is suitable for growth of Chinese pine, and the indexes such as the germination rate and the survival rate after transplant are remarkably improved.

Description

technical field [0001] The invention relates to the technical field of culture medium preparation, in particular to mushroom residue culture medium suitable for the growth of Pinus tabulaeformis. Background technique [0002] The traditional Chinese pine cultivation uses pastoral soil as the substrate. During the cultivation process, the root system of the saplings is underdeveloped due to the small porosity of the substrate. Plants with a small root system are not conducive to growing and cultivating in a drought-resistant environment. Moreover, the actual environment for planting Pinus tabulaeformis is a natural environment with little rain and drought, so the survival rate of the existing Pinus tabulaeformis cultivation after transplanting is low. Moreover, since Pinus tabulaeformis is generally cultivated in mountainous areas, manpower is required for transportation, and the soil matrix of the pastoral area has a large capacity. , The labor intensity of moving is high. ...

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Problems solved by technology

Moreover, the actual environment for planting Pinus tabulaeformis is a natural environment with little rain and drought, so the survival rate of the existing Pinus tabulaeformis cultivation after transplanting is low. Moreover, since Pinus tabulaeformis is generally cultivated in mountainous areas, manpower is required for transportation, and the soil matrix of the pastoral area has a large capacity. , the labor intensity of moving is high

Although the mushroom dregs substrate has a small bulk density and is easy to transport, using mushroom dregs as a cultivation substrate, its physical indicators (bulk density, porosity, water holding capacity) are not easy to control within the range of the ideal substrate, thus causing adverse effects on the growth of Pinus tabulaeformis

The Hebei Provincial Academy of Forestry has studied the use of sludge, slag mixed medium and mixed slag, pastoral soil, and cow dung to make a mixed medium for the cultivation of Pinus tabulaeformis, but because it still contains sludge or pastoral soil, so , its overall weight is still relatively large, which still has an adverse effect on transportation. In addition, because it needs to be prepared from multiple ingredients, there are problems in raw material purchase, transportation, preservation and preparation, and it still cannot effectively meet the needs of Pinus tabulaeformis cultivation and Later transplanting needs

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