1、 Product Description

Bacteria, fungi, and viruses are the main causes of crop diseases. These pathogenic microorganisms generally infect plants through stems, leaves, roots, fruits, etc. Although most diseases can be easily controlled in the early stages of infection, they are generally not easily detected by people. Once a disease occurs, prevention and control are not only difficult but also ineffective, resulting in reduced crop yields or even complete crop failure. How to detect and prevent diseases in the early stage of onset is particularly important for preventing and controlling the occurrence of diseases. The detection of plant diseases is a complex chemical and physical process, which has always been a goal pursued by people from the laboratory to practical applications. The plant disease rapid analyzer developed by Zhengzhou Oukeqi Instrument Manufacturing Co., Ltd. can quickly analyze and determine the types of various crop diseases, providing a scientific theoretical basis for how to prevent and control diseases and use drugs, and bringing great convenience to farmers and farmers.

2、 Detection principle

According to biophysical methods, the membrane position of generally healthy plants is around -50mv, the external liquid membrane resistance is around 105 Ω/cm, and the membrane capacitance is basically maintained at 1uf. Once crops are infected, it will inevitably lead to changes in molecular vibrational spectra and an increase in membrane potential, and the inoculation of different pathogens will change. Based on this principle, the types and types of diseases can be distinguished through conductivity and light diffraction methods.

3、 Technical indicators and working environment

1. Large screen Chinese LCD display and prompts for operation;

2. Measurement principle: ultra-high brightness cold light source reflection measurement principle;

3. Testing speed: 60 tests per hour for a single test, 120 tests per hour for continuous testing;

4. Recording method: Printed by thermal printer;

5. Display mode: 240X60 dot matrix LCD display;

6. Recording paper: Thermal printing paper with a width of 57mm

7. Working environment

(1) Working temperature: 0 ℃~40 ℃

(2) Relative humidity: RH ≤ 85%

(3) Stay away from strong electromagnetic interference sources and avoid direct exposure to strong light

8. Working power supply: AC220V ± 10%, 50Hz ± 2Hz

9. Power ≤ 30W

10. Net weight ≤ 3Kg.

4、 Operating procedures

1. Turn on the power, the instrument starts self checking, the detection slot slowly moves out, and waits for testing.

2. Cut the roots, stems, and leaves of the plants into small pieces and place them in a plastic bowl, with a quantity of approximately one-third to one-fifth of the bowl's capacity.

3. Take equal amounts of five indicator liquids using droppers, drop them into a plastic bowl containing plants, stir evenly, and let it sit for 2-3 minutes for testing.

4. Rinse the dropper with clean water and take a small amount of the mixture of indicator and plant debris, evenly apply it to the indicator strip, and place the indicator strip in the testing slot with the colored strip facing up.

5. Gently press the "Test" button, and after hearing a "beep" sound, the tester starts to detect. The test slot and indicator bar slowly move into the instrument, and then return. At this point, the instrument begins to automatically print the test results.

5、 Result analysis

If the test value is greater than the reference value, it indicates normal growth. If it is lower than the reference value, medication can be used as a reference.

6、 Medication Guide

The test values are reference values for guiding drug use. The lower the test values, the more severe the crop disease or weaker the plant growth. In addition to using fungicides, foliar fertilizers should be applied, and the dosage should not exceed the limit value of a certain drug, otherwise it will cause drug damage.

7、 Precautions

1. Avoid testing in areas with direct sunlight.

2. Pay attention to electrical safety, and stop using when the air humidity exceeds 85%.

3. The instrument should be stored in a ventilated, dry, and dark location, and covered with a dry cloth.

4. The test slot and print head should be kept clean.

8、 Instrument matching

One host, one box of test strips, two fuses, one power cord, one roll of printing paper, and five indicator liquids.