Preparation method for biological matrix prepared from compact plant fiber

Abstract

The invention relates to a preparation method for biological matrix prepared from compact plant fiber. The method is characterized by comprising the following steps: step 1, performing pretreatment ofraw materials; step 2, inoculating an organic matter decomposer for fermentation; step 3, inoculating functional bacteria for secondary fermentation; step 4, compounding the matrix. According to thescheme, the physical behavior is optimized, the porosity is optimized; in the pretreatment method, the matrix is safe and healthy; after high temperature treatment, no weed seeds, escherichia coli, ova of roundworm, pathogenic microorganism and the like exist, the matrix more conforms to the sanitary requirement.

Description

Technical field [0001] The invention relates to a substrate, in particular to a preparation method of a biological substrate made of dense plant fiber materials, and belongs to the technical field of agricultural soilless cultivation. Background technique [0002] Substrates are widely used in modern soilless cultivation and crop seedlings, and their role in crop production is becoming more and more important, becoming an indispensable agricultural input. At present, the substrate used in production is mainly a mixture of 2-3 kinds of materials such as peat, vermiculite, perlite, coconut bran, etc. However, the commonly used substrates on the market currently have the following problems: 1) Perlite and vermiculite are mineral resources , Completely non-renewable, the current market price is 1.5 to 2 times of the present invention (market price 150-200 yuan / cubic), the vermiculite and perlite firing process has great environmental problems; 2) coconut chaff is a renewable resource...

AI Technical Summary

Problems solved by technology

At present, the substrate used in production is mainly a mixture of 2-3 kinds of materials such as peat, vermiculite, perlite, coconut peat, etc., but the substrates commonly used in the market currently have the following problems: 1) Perlite and vermiculite are mineral resources , completely non-renewable, the current market price is 1.5~2 times of the present invention (market price 150~200 yuan / cubic), there is very big environmental protection problem in vermiculite and perlite firing process; 2) coconut peat belongs to renewable resources, but The production area is very limited, mainly distributed in several subtropical countries and regions, and the resources are limited, and the total amount is not much

At the same time, coconut peat needs to go through processes such as water washing and desalination during the processing process. There is a large amount of sewage to be treated, and its cost is also high. 3) Peat belongs to weakly renewable mineral resources. my country's reserves are about 1.1 billion tons, mainly distributed in Heilongjiang and Jilin, etc. In order to prohibit the exploitation of resources in our country, the peat used in domestic substrates is mainly imported, and its CIF price is above 350 yuan / cubic, and the use cost is 3 to 3.5 times that of rice husks; 4) the existing substrates will Grass seeds and grains are harmful to plant growth, and often contain pathogenic microorganisms such as Pythium and nematodes, which are dangerous to plant production

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