Soil TOC Analyzer

Introduction:

Soil total organic carbon (TOC) and carbon nitrogen ratio (C/N ratio) are important indicators of organic matter in soil, used to evaluate soil quality and the decomposition process of organic matter.

Soil total organic carbon refers to the total amount of organic carbon in the soil, including plant and animal residues, organic fertilizers, and microbial metabolites. It is a comprehensive indicator of soil organic matter content.

The significance of soil carbon nitrogen ratio lies in providing information about soil nutrient cycling and organic matter decomposition. Low carbon to nitrogen ratio usually indicates that the degradation rate of organic matter in soil is faster, organic nitrogen is relatively higher, and soil fertility may be higher. A high carbon to nitrogen ratio usually indicates a slower rate of organic matter decomposition in the soil, relatively low organic nitrogen, and possibly lower soil fertility. Generally speaking, the typical range of soil carbon to nitrogen ratio is usually between 10:1 and 20:1. Different soil types can have an impact on soil carbon nitrogen ratio.

The ratio of total organic carbon and carbon to nitrogen in soil has a significant impact on soil quality assessment, nutrient cycling processes, and soil fertility management. Appropriate content and proportion can help maintain soil health and fertility.

Multi functional and complete testing items: 

1. Soil nutrients: Soil total organic carbon (TOC), soil carbon nitrogen ratio, soil ammonium nitrogen, soil available phosphorus, soil available potassium, soil nitrate nitrogen, soil hydrolyzed nitrogen, soil total nitrogen, soil total phosphorus, soil total potassium, soil organic matter (hill forest method), soil organic matter (leaching method), pH value, salt content, and moisture. Trace elements in soil: soil calcium, soil magnesium, soil sulfur, soil silicon, soil boron, soil iron, soil copper, soil manganese, soil zinc, soil chlorine.

Testing efficiency:

Simultaneous extraction and determination of multiple nutrients such as efficient nitrogen, phosphorus, and potassium in soil at once (drafter of the Ministry of Agriculture's rapid testing industry standard).

Test speed: At normal proficiency level:

Measuring three soil samples (N, P, K) takes 20 minutes (including preparation time for chemicals and soil sample pretreatment time), while testing three soil samples (N, P, K) for ≤ 40 minutes, and testing eight soil samples for ≤ 1 hour.

Test error:

The error of soil nitrogen, phosphorus, and potassium is ≤ 1%, the error of organic matter is ≤ 2%, and the relative error of trace elements is ≤ 5%; The single error of fertilizer is ≤ 0.5%, and the error of nitrogen, phosphorus, and potassium is ≤ 1%.

Functional features:

1. Android intelligent operating system, the main control chip adopts ARM Cortex-A7, RK3288/4-core processor, with a main frequency of 1.88GHz, faster operation speed and stronger stability.

2. Adopting a precision rotating colorimetric cell design (patent number: ZL 2018 2 1777724.7), the consistency of the light source is more accurate, ensuring detection accuracy.

3. 8 rotating detection channels can quickly detect 8 samples at once, greatly improving detection efficiency and reducing detection costs.

4. Adopting high-precision filter technology independent patent analysis method (patent number: ZL 2020 2 1763837.9), authoritative certification.

5. Built in calibration function during the detection process, intelligent constant current voltage stabilization, automatic calibration of light intensity, ensuring detection accuracy, and obtaining the "Calibration Certificate" from the China Institute of Metrology.

6. The instrument comes standard with WiFi wireless upload, 4G network transmission, and GPRS wireless remote transmission function, allowing for quick data upload.

7. Equipped with a smart cloud agriculture platform, the instrument can be connected to a wireless network to selectively or batch upload detection data wirelessly, making it convenient for users to conduct long-term data management and visual analysis.

8. The instrument has both USB and Ethernet interfaces, built-in large capacity memory, and can copy data at any time using a USB flash drive.

9. You can log in to the cloud platform at any time with your mobile phone and view historical data online

10. The built-in crop expert fertilization system can calculate recommended fertilization amounts for over a hundred national agricultural economic crops, fruit trees, and other target yields, and scientifically guide agricultural production based on fertilization formulas. The results of soil testing formula fertilization can be printed, including: crop type, fertilizer type, target yield, total demand, and recommended fertilization plan.

11. Built in plant nutrition diagnostic standard map, based on images of nutrient deficiency in various crops, conduct leaf comparison to diagnose abundance and deficiency.

12. 4 wavelength professional testing cold light source (red, blue, green, orange), the light source wavelength is stable, the light source works continuously for a long time without temperature drift, the lifespan is up to 100000 hours, the reproducibility is good, and the accuracy is high.

13. The colorimetric cell adopts a standard 1cm colorimetric dish, with no mechanical displacement or wear. The optical path testing positioning is precise, effectively shielding external light interference and ensuring that the detection results are better than the national standard requirements.

14. The instrument system comes with sample pre-treatment operation videos, and various sample detection methods can be viewed by clicking on the video module. Testing personnel do not need to self-study the manual, and the guidance and teaching are convenient and fast, making it easy for beginners to operate quickly.

15. Built in new generation high-speed thermal printer (no ribbon required), printing content includes information such as testing unit, testing personnel, testing items, channel number, absorbance, nutrient content (mg/kg), testing time, and QR code

16. High sensitivity 7-inch true color touch screen, adopting more efficient and user-friendly operation, high-definition and high interactive display, greatly reducing the tedious operation and errors of traditional instruments, and obtaining multiple software copyrights.

17. Built in clock function, convenient for time recording and long-term historical traceability.

18. Multiple account passwords can be set for login, with an efficient UI interactive interface. Different users can freely add and edit detection information, which can be saved for long-term use.

19. GPS function: It can record latitude and longitude locations during field operations to meet special user needs.

20. Built in low voltage prompt function, which can clearly indicate the battery level during detection to avoid test data deviation. At the same time, it has power-off protection function, which automatically saves data during power-off to prevent data loss.

21. Dual use AC/DC power supply method, built-in large capacity rechargeable lithium battery, can work continuously for more than 10 hours when fully charged, and can also be connected to an external vehicle power supply for storage.

22. The instrument has a Chinese English switching function, which can meet export requirements.

23. High strength PVC engineering plastic carrying case design, sturdy and durable, easy to carry.

Technical parameters:

1. Power supply: AC 220 ± 22V DC 12V+5V (the instrument has a built-in lithium battery and can also be powered by a car power supply)

2. Power: ≤ 5W

3. Range and Resolution: 0.001-9999

4. Repeatability error: ≤ 0.02% (0.0002, potassium dichromate solution)

5. Instrument stability: No drift in displayed numbers within one hour (transparency measurement); The numerical drift within two hours should not exceed 0.3% (0.003 for transparency measurement) and 0.001 (for absorbance measurement).

6. Linear error: ≤ 0.1% (0.001, copper sulfate detection)

7. Sensitivity: Red light ≥ 4.5 × 10-5 Blue light ≥ 3.17 × 10-3 Green light ≥ 2.35 × 10-3 Orange light ≥ 2.13 × 10-3

8. Wavelength range: Red light: 680 ± 2nm; Blue light: 420 ± 2nm; Green light: 510 ± 2nm; Orange light: 590 ± 4nm

9. PH value (pH): (1) Test range: 1-14 (2) Accuracy: 0.01 (3) Error: ± 0.1

10. Salt content (conductivity): (1) Test range: 0.01% to 1.00% (2) Relative error: ± 5%

11. Soil moisture technical parameters Water unit:% (g/100g); Moisture content testing range: 0-100%; Error less than 0.5%

12. Display screen resolution: 1024 * 600

13. Seismic rating: IP65

14. Instrument size: 48 × 34.5 × 22cm

15. Net weight of the host: 5.2kg

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