The soil nitrogen, phosphorus, and potassium tester is fully functional, with comprehensive testing capabilities both domestically and internationally (all types of reagents are available for purchase). This instrument integrates reagents, equipment, and instruments into one unit, making it easy to carry and equivalent to a small laboratory. It is suitable for agricultural services, agricultural supply dealers, and fertilizer manufacturers for soil testing, fertilization, and fertilizer authenticity verification.
It is easy to operate and fast, with ready-to-use reagent bottles that require no preparation. Its operational stability exceeds the JJG179-90 standard by six times, and its repeatability reaches the level of a grating-type spectrophotometer.
The following parameters can be tested:
1. Soil nutrients:
● Ammonium nitrogen in soil, available phosphorus in soil, available potassium in soil, nitrate nitrogen in soil, hydrolyzed nitrogen in soil, total nitrogen in soil, total phosphorus in soil, total potassium in soil, soil organic matter (Choulin method), soil organic matter (extraction method), total organic carbon in soil, carbon-to-nitrogen ratio in soil, pH value, salinity, moisture content.
● Soil trace elements: Soil calcium, soil magnesium, soil sulfur, soil silicon, soil boron, soil iron, soil copper, soil manganese, soil zinc, soil chlorine, soil molybdenum;
● Soil heavy metals: soil lead, soil arsenic, soil cadmium, soil chromium, soil mercury, soil nickel, soil aluminum, soil fluorine, soil titanium, soil selenium.
2. Fertilizer nutrients:
●Single-component fertilizers: ammonium nitrogen in nitrogen fertilizers, nitrate nitrogen in fertilizers, urea nitrogen, urea formaldehyde, phosphorus in phosphorus fertilizers, water-soluble phosphorus in phosphorus fertilizers, potassium in potassium fertilizers;
●Total nitrogen in compound fertilizers, total phosphorus in compound fertilizers, total potassium in compound fertilizers;
● Organic fertilizers: total nitrogen, total phosphorus, total potassium, nitrate nitrogen, available phosphorus, available potassium, acid-hydrolyzable nitrogen, organic matter;
● Water-soluble humic acid (lignite), water-soluble humic acid (brown coal), water-soluble humic acid (peat), free humic acid (lignite), free humic acid (brown coal), free humic acid (peat);
● Total nitrogen in water-soluble fertilizers, total phosphorus in water-soluble fertilizers, total potassium in water-soluble fertilizers;
● Total nitrogen in foliar fertilizers, total phosphorus in foliar fertilizers, total potassium in foliar fertilizers;
● Trace elements in various fertilizers: calcium in fertilizers, magnesium in fertilizers, sulfur in fertilizers, silicon in fertilizers, boron in fertilizers, iron in fertilizers, copper in fertilizers, manganese in fertilizers, zinc in fertilizers, chlorine in fertilizers, molybdenum in fertilizers;
● Heavy metals in fertilizers: lead, arsenic, cadmium, chromium, mercury, nickel, aluminum, fluorine, titanium, and selenium.
3. Fresh crop nutrients:
● Crop nitrate nitrogen, crop ammonium nitrogen, crop phosphorus, crop potassium;
● Crop trace elements: Crop calcium, crop magnesium, crop sulfur, crop silicon, crop boron, crop iron, crop copper, crop manganese, crop zinc, crop chlorine, crop molybdenum;
● Crop nitrates, nitrites.
4. Dry plant nutrition:
● Total nitrogen in plants, total phosphorus in plants, total potassium in plants.
5. Tobacco leaf nutrition:
● Total nitrogen, total phosphorus, total potassium, reducing sugars, water-soluble total sugars, boron, manganese, iron, copper, calcium, magnesium, and 20 other items.
6. Food (fruits, vegetables, etc.):
● Nitrates, nitrites, heavy metals (lead, chromium, cadmium, arsenic, mercury), etc.
7. Water quality:
● Ammonium nitrogen, phosphorus in water, potassium in water, nitrates, nitrites, hardness, pH, iron, copper, manganese, zinc, boron, chlorine, sulfur, silicon, molybdenum, etc.
Android smart operating system, main control chip uses ARM Cortex-A7, RK3288/4-core processor, main frequency 1.88Ghz, faster running speed, stronger stability.
Equipped with a smart cloud agriculture platform, the instrument can connect to a wireless network to selectively or batch-upload detection data wirelessly, facilitating long-term data management and visualization analysis for users.
Features a precision rotating colorimetric cell design (Patent No.: ZL 2018 2 1777724.7), ensuring more accurate light source consistency and maintaining detection accuracy.
Soil testing and fertilizer prescription results can be printed, with the printout including: crop type, fertilizer type, target yield, total requirement, and recommended fertilization plan.
With 8 rotating detection channels, the instrument can quickly test 8 samples at once, improving testing efficiency and reducing testing costs.
The instrument is equipped with standard Wi-Fi wireless upload, 4G network transmission, and GPRS wireless remote transmission functions, enabling rapid data upload.
It employs a proprietary high-precision filter technology analysis method (Patent No.: ZL 2020 2 1763837.9), with authoritative certification.
The instrument features USB and Ethernet interfaces, built-in large-capacity memory, and supports data copying via USB drive at any time.
The instrument includes built-in calibration functionality, intelligent constant-current voltage regulation, and automatic light intensity calibration to ensure testing accuracy, and has obtained a Calibration Certificate from the China National Institute of Metrology.
The instrument is equipped with a crop expert fertilization system that can calculate recommended fertilization amounts for over 100 types of national agricultural crops and fruit trees based on target yields, providing scientific guidance for agricultural production based on fertilization formulas.
Users can log in to the cloud platform via mobile devices to view historical data online at any time.
The instrument includes a built-in clock function for convenient time recording and long-term historical traceability.
Built-in plant nutrient diagnosis standard spectrum, which compares leaf images based on nutrient deficiency images of various crops to diagnose nutrient deficiencies.
4-wavelength professional testing cold light source (red, blue, green, orange), with stable light source wavelengths, no temperature drift during prolonged continuous operation, a lifespan of up to 100,000 hours, excellent reproducibility, and high accuracy.
The instrument system includes sample pretreatment operation videos. Various sample testing methods can be viewed by clicking the video module, eliminating the need for operators to study manuals. This facilitates quick guidance and training, making it easy for newcomers to operate the system.
The colorimetric cell section uses standard 1cm colorimetric cells, with no mechanical displacement or wear. The optical path testing positioning is accurate, effectively shielding external light interference, ensuring testing results exceed national standard requirements.
The instrument features a low voltage warning function, allowing users to monitor battery levels during testing to prevent data drift. It also includes power failure protection, automatically saving data in case of power loss to prevent data loss.
The instrument is equipped with a new-generation high-speed thermal printer (no ribbon required), which prints the following information: testing unit, tester, testing item, channel number, absorbance, nutrient content (mg/kg), testing time, and QR code.
High-sensitivity 7-inch true-color touchscreen with more efficient and user-friendly operation, high-definition and high-interactivity display, significantly reducing the cumbersome operations and errors of traditional instruments, and obtaining multiple software copyrights.
Supports multiple account login with password settings, featuring an effective UI interface. Different users can freely add and edit testing information, which can be saved for long-term use.
GPS functionality: Records latitude and longitude locations during field operations to meet special user requirements.
Dual-power supply mode (AC/DC), with a built-in high-capacity rechargeable lithium battery. Fully charged, it can operate continuously for over 10 hours and can also be connected to a vehicle power source for charging.
The instrument features a Chinese-English language switch function to meet export requirements.
High-strength PVC engineering plastic carry case design, durable and easy to carry.
Power Supply | AC 220±22V, DC 12V+5V (the instrument's built-in lithium battery can also be used with a car power supply) |
Power | ≤5W |
Range and resolution | 0.001-9999 |
Stability | ① No drift in displayed values within one hour (transmittance measurement) ② Digital drift does not exceed 0.3% (0.003, transmittance measurement) or 0.001 (absorbance measurement) within two hours |
Linear error | ≤0.1% (0.001, copper sulfate detection) |
Repeatability error | ≤0.02% (0.0002, potassium dichromate solution) |
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 |
Wavelength range | Red light 680 ± 2 nm, blue light 420 ± 2 nm, green light 510 ± 2 nm, orange light 590 ± 4 nm |
pH value (acidity/alkalinity) | ① Test range: 1–14, ② Accuracy: 0.01, ③ Error: ±0.1 |
Salinity (conductivity) | ① Test range: 0.01% to 1.00%, ② Relative error: ±5% |
Soil moisture technical parameters Moisture unit | % (g/100g) |
Moisture content | ① Test range: 0–100%, ②Accuracy: ±0.5% |
Test Efficiency | Simultaneous extraction and determination of multiple nutrients such as readily available N, P, and K in soil (drafted by the Ministry of Agriculture's rapid testing industry standard). |
Testing accuracy | Soil N, P, and K accuracy ≤1%, organic matter accuracy ≤2%, trace element relative accuracy ≤5%; fertilizer single-item accuracy ≤0.5%, N, P, and K three-item accuracy ≤1%; |
Display resolution | 1024×600 |
Vibration resistance rating | IP65 |
Dimensions and weight | 48×34.5×22 cm, 5.2 kg |