Method for distinguishing infrared radiation absorption characteristics of cereals and pests

A technology of infrared radiation and absorption characteristics, applied in measuring devices, material analysis through optical means, instruments, etc., can solve the problem of high energy consumption of infrared equipment, unclear essential connection, and no systematic research on infrared radiation parameters. and other problems, to achieve the effect of low energy consumption, small change in grain quality, and high insecticidal efficiency

Inactive Publication Date: 2017-05-31
NANJING UNIV OF FINANCE & ECONOMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research on infrared radiation insecticide at home and abroad is currently focused on the application research such as the exploration of insecticidal technology. There is no systematic study on the relationship between infrared radiation parameters and pest lethality. The essential relationship between the two is still unclear. The required energy consumption is too large, these unfavorable factors have affected the application and development of infrared insecticidal technology

Method used

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  • Method for distinguishing infrared radiation absorption characteristics of cereals and pests
  • Method for distinguishing infrared radiation absorption characteristics of cereals and pests
  • Method for distinguishing infrared radiation absorption characteristics of cereals and pests

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 Infrared Spectral Detection of Corn Elephant and High Moisture Rice

[0024] 1. Obtain higher moisture rice

[0025] Paddy with an initial moisture content of 15±0.3% was adjusted to target moisture content of 15%, 18%, 21% and 24% with deionized water.

[0026] 2. Culture of maize elephants

[0027] Put adult corn weevils into uninfected rice, place them in an artificial climate incubator with a temperature of 28°C and a relative humidity of 70%, pick out the adults after incubation for 6-7 days, and cultivate the infected rice for about 30 days to find Signs of activity of adults. During the cultivation period, no larvae and pupae of corn weevil were found with the naked eye. They need to be stained with acid fuchsin, lightly crushed and observed under a dissecting microscope, but this is not conducive to the research of this experiment, so only the adult state of corn weevil was used experiment.

[0028] 3. Collection and Handling of Corn Weevil Adults ...

Embodiment 2

[0034] Example 2 Infrared Spectrum Detection of Adults of Tribulus chinensis and High Moisture Rice

[0035] 1. Obtain higher moisture rice

[0036] Paddy with an initial moisture content of 15±0.3% was adjusted to target moisture content of 15%, 18%, 21% and 24% with deionized water.

[0037] 2. Cultivation of Trichosmus chinensis

[0038] Put the eclosioned adult worms into uninfected rice, place them in an artificial climate incubator with a temperature of 25°C and a relative humidity of 60%, and pick out the adults after incubation for 4-8 days, and cultivate the rice that has been infected with eggs Larvae can be observed around 20 days, larvae hatch into pupae after 6 days, and activity signs of adults can be found after 35 days.

[0039] 3. Collection and processing of the different morphs of Tribulus chinensis

[0040] The larvae, pupae, and adults of Tribulus chinensis were selected from each stage. In order to facilitate the test, the selected pests were placed in...

Embodiment 3

[0045] Example 3 Infrared Spectral Detection of Grain Beetle and High Moisture Rice

[0046] 1. Obtain higher moisture rice

[0047] Paddy with an initial moisture content of 15±0.3% was adjusted to target moisture content of 15%, 18%, 21% and 24% with deionized water.

[0048] 2. Cultivation of Grain Beetle

[0049] Put the adult beetles after eclosion into uninfected rice, place them in an artificial climate incubator with a temperature of 30°C and a relative humidity of 80%, pick out the adults after incubation for 10-15 days, and culture the rice with eggs infected for 40 days Signs of activity of adults can be found on the left and right. During the culture period, no larvae and pupae of the beetle could be found with the naked eye. They need to be stained with acid fuchsin, lightly crushed and observed under a dissecting microscope, but this is not conducive to the research of this experiment, so only the adult state of the beetle was used for the study. experiment. ...

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Abstract

The invention discloses a method for distinguishing the infrared radiation absorption characteristics of cereals and pests. The method can be used to rapidly and conveniently acquire infrared radiation wavelength parameters of the cereals and the pests so as to determine an optimal band for infrared disinfestation. The method for measuring infrared characteristics of the cereals and the stored grain pests comprises the following steps: 1, preparing a sample; 2, measuring and scanning the cereals and the pests by adopting a Fourier transform attenuated total reflection infrared spectrometer, and collecting infrared spectrograms and data of the cereals and the pests; 3, carrying out qualitative analysis on the infrared spectrogram and data of the cereals and the pests, and drawing a fingerprint infrared spectrum; 4, acquiring a wavelength range with low infrared radiation temperature and small cereal quality change according to Wien displacement law and based on the acquired infrared spectrogram, and taking the acquired wavelength range as a working wavelength range of infrared Insecticidal equipment. When an infrared radiation device works under the wavelength range condition, the occurrence of pests can be effectively reduced during storage, the original quality and taste of the cereals are maintained, and the energy consumption is low.

Description

technical field [0001] The invention belongs to the technical field of agricultural product storage, and in particular relates to a method for quickly measuring the infrared characteristics of grains and pests based on Fourier transform infrared spectrum detection technology. Background technique [0002] Every year, the loss of stored grain in my country due to insect mold pollution is more than 20 billion catties. In order to control stored grain pests, storage companies usually choose the appropriate time to use PH during the storage period 3 and other chemical reagents to fumigate and kill insects. However, due to the unreasonable use of fumigants and the increasing immunity of stored grain pests to fumigants, the resistance of pests has increased significantly. 3 The insecticidal effect of fumigation is significantly reduced, and the remaining highly resistant pests will cause secondary pollution of the environment and further damage the ecological balance. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/3563
CPCG01N21/3563G01N2021/3595
Inventor 丁超裴永胜
Owner NANJING UNIV OF FINANCE & ECONOMICS
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