Preparation method of culture medium and fermentation determination method of culture medium

Abstract

The invention discloses a preparation method of a culture medium and a fermentation determination method of the culture medium. The non-fruit part of plants is smashed to obtain a mixture, urea of which total nitrogen content is greater than or equal to 46.40% is added into the mixture to adjust the C / N proportion of forestry and agricultural residues, then the water content of the mixture is adjusted, exogenous microorganisms are inoculated, a fermentation vat is adopted to perform fermentation and pile turning, and the culture medium is obtained after a certain time. The highest fermentationtemperature of a pile body mixed with the exogenous microorganisms is 42-54 DEG C, the temperature can last for 48-72 hours, continuous high temperature enables thermophilic microorganisms to proliferate and become dominant microorganisms, large amounts of soluble organic matters and complex organic matters (cellulose, hemicellulose, pectic substances and the like) are decomposed, thereby formingmore stable humus, the continuous high temperature can also kill worm eggs and bacteria in the forestry and agricultural residues, and the hygienic and harmless disposal conditions of the forestry and agricultural residues are satisfied.

Description

technical field [0001] The invention relates to the field of substrates for potted flowers, in particular to a method for preparing a substrate for potted flowers by fermenting agricultural and forestry wastes and a method for judging the fermentation of the cultivation substrate. Background technique [0002] With the improvement of people's living standards, the scale of the flower industry continues to expand, and the demand for cultivation substrates also increases rapidly accordingly. At present, peat is widely used as a substrate material for flower and tree cultivation in the world, but as a non-renewable resource, excessive exploitation will cause serious damage to wetland ecology. In addition, the increasing price cost has also become one of the factors that prompt flower producers to seek alternative substrates. [0003] Relevant data show that my country is one of the countries with the largest output of agricultural and forestry waste in the world, with an annua...

AI Technical Summary

Problems solved by technology

It is generally believed that the fermentation substrate is completely decomposed if there is no peculiar smell, the pile is dark brown, and there is no significant difference between the temperature and the outside temperature. However, these methods have different judgment standards and vary from person to person, and there is no clear quantitative index.

In addition, the use of fermentation substrate as a cultivation substrate does not require the fermentation substrate to be completely decomposed, as long as it has no obvious toxic effect on the plant root system, but there is no effective indicator to judge whether the fermentation substrate is in a usable state

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