Color difference identification method for fermentation degree of padding of microbial fermentation bed

Abstract

The invention provides a color difference identification method for a fermentation degree of padding of a microbial fermentation bed. The method comprises the following steps of performing colorimetric analysis on a plurality of padding samples of a microbial fermentation bed large-fence piggery by virtue of a TES-135 color difference meter, performing statistical analysis on color differences among the samples by adopting a Hunter color difference formula, dividing fermentation grades of the padding into four levels in combination with an STDEV (standard deviation) algorithm according to degree of dispersion of the color differences of the samples relative to a mean value: the first fermentation grade indicating that DeltaE is more than 0 and less than or equal to Mu-2Sigma, the second fermentation grade indicating that DeltaE is more than Mu-Sigma and less than or equal to Mu, the third fermentation grade indicating that DeltaE is more than Mu and less than or equal to Mu+Sigma and the fourth fermentation grade indicating that DeltaE is more than or equal to Mu+Sigma, and performing apparent description on the padding samples at different fermentation grades in terms of apparent color, humidity, taste, decay degree and the like, wherein a result shows that the fermentation grades of the padding can be accurately reflected by colorimetric analysis on the padding. According to the method, the fermentation grades of the padding of the fermentation bed can be rapidly identified, and the method has the advantages of measurability, small error, high accuracy, simplicity in operation and the like.

Description

【Technical field】 [0001] The invention relates to a method for identifying the color difference of the fermentation degree of microbial fermentation mattress materials. 【Background technique】 [0002] Large-scale pig raising in microbial fermentation bed is a new type of organic agricultural technology that is different from the traditional pig raising model and has no pollution and zero emissions. The growth environment can reduce the pressure of breeding pollution on the environment. Microbial fermentation bed culture technology originated in Japan in the 1960s, and has been widely promoted and applied in China in recent years, resulting in huge economic benefits. [0003] The fermented bedding material is made of chaff, straw, sawdust, etc. mixed with soil in a certain proportion and then laid as an organic medium. Its function is to absorb pig excrement and degrade the excrement through microorganisms to achieve pollution-free and zero-emission Purpose. As the ferment...

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Problems solved by technology

However, due to the lack of quantitative measurement indicators, this method is likely to cause subjective errors caused by human beings, and can only be used in combination with other indicators (Reference: Zhang Yaning. Establishment of rapid measurement indicators and methods for compost maturity[D][J]. China Master Degree Thesis of Agricultural University, 2004, 4)

According to the different suspension rates of bedding materials in different NaCl solutions, Song Zeqiong et al. divided pig fermented bedding materials into four grades, which better reflected the degree of fermentation of pig fermented bedding materials, but at the same time, there were cumbersome operations and heavy workload. etc. (References: Song Zeqiong, Lan Jianglin, Liu Bo, et al. Research on Fermentation Index of Microbial Fermentation Mattress for Pig Raising[J]. Journal of Fujian Agricultural Sciences, 2011,26(6):1069-1075)

Finding a method to quickly identify the fermentation grade of fermented bedding materials is of great significance for the study of microbial fermentation beds, and there is no report on this aspect of research so far

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