Quick prediction method for total nitrogen content of liquid dung in whole-chain step of liquid dung treatment for large-scale dairy farm

Abstract

The invention discloses a quick prediction method for the total nitrogen content of a liquid dung sample in a whole-chain step of liquid dung treatment for a large-scale dairy farm. According to the method, a typical planting and breeding combination-type large-scale dairy farm is selected, on-site investigation, liquid dung and biogas slurry sampling measurement, spectrum collection and mathematical modeling are combined for the whole-chain step of liquid dung treatment under all dynamical composite influence factors, and a near-infrared diffuse reflection spectrum is adopted for constructionof a prediction model and quick detection for the total nitrogen content of the liquid dung in the whole step; under the condition of meeting the on-site conditions, quantitative prediction is quickly and accurately conducted, a conventional monitoring procedure is replaced, an effective technical method is provided for solving the problem, of difficult returning of the liquid dung to the field,of any large-scale dairy farm, and the technical support is provided for promoting green transformation and development of the dairy industry.

Description

technical field [0001] The invention belongs to the technical field of monitoring and detection, and in particular relates to a method for quickly predicting the total nitrogen content in dung in the whole chain link of large-scale dairy farm dung water treatment. Background technique [0002] In recent years, the increase in the scale of dairy farms has caused environmental pressure to become prominent. Especially in summer, the increase in water consumption for cooling milking workshops and cowsheds, and the mixed flow of rain and sewage have caused a sharp increase in the amount of manure, which reduces the efficiency of collection, transportation and treatment. A large amount of manure and The outlet of biogas slurry has become the primary problem hindering the normal operation of dairy farms and even the green transformation and development of the dairy industry at this stage. Practical experience at home and abroad shows that returning to the field for agricultural use...

AI Technical Summary

Problems solved by technology

[0004] However, most of the current existing technologies focus on the feasibility analysis of quantitative prediction of near-infrared spectroscopy for the composition and content of single-scale and single-scale livestock and poultry manure samples, but they have not addressed the entire chain of large-scale dairy farm manure treatment. To establish a rapid prediction method for near-infrared spectroscopy and its full-scale comprehensive model under the conditions of complex and compound influencing factors in the field

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