Research-grade soil fertilizer nutrient analyzer

Research-grade soil fertilizer nutrient analyzer

  • Product Number:LD-GT6
  • Product Difference:12 rotating detection channels with Chinese-English switching function to meet export requirements

Product Introduction

The research-grade soil fertilizer nutrient analyzer integrates reagents, instruments, and equipment into one unit, making it easy to carry and equivalent to a small mobile laboratory. It does not require users to purchase additional accessories and can be used for flexible field testing. It is suitable for agricultural service departments, agricultural supply dealers, higher education institutions, research institutes, cooperatives, fertilizer manufacturers, and large-scale farmers for soil testing and fertilization, as well as for identifying the authenticity of fertilizers and environmental testing applications. The testing scope covers both domestic and international standards. In addition to the standard reagents, other types of reagents can be purchased separately.

The instrument is easy to operate and provides rapid results. It comes with a complete set of accessories and ready-to-use reagents, eliminating the need for preparation. Its operational stability exceeds the national standard JJG179-90 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.

Product Features

  • 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 consistent light source accuracy and reliable detection precision.

  • 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.

  • 12 rotating detection channels enable rapid testing of 12 samples at once, significantly improving testing efficiency and reducing testing costs.

  • Utilizes high-precision filter technology with proprietary analytical methods (Patent No.: ZL 2020 2 1763837.9), certified by authoritative bodies.

  • The instrument is standardly equipped with Wi-Fi wireless upload and GPRS wireless remote transmission functions. It can be configured with 4G network connectivity for outdoor use, enabling rapid data upload.

  • The instrument features both USB and Ethernet interfaces, with built-in large-capacity memory, and data can be copied to a USB drive at any time.

  • The instrument is equipped with a crop expert fertilization system, which 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.

  • The instrument features built-in calibration functions, intelligent constant current voltage regulation, and automatic light intensity calibration during testing to ensure measurement accuracy, and has obtained a Calibration Certificate from the China National Institute of Metrology.

  • Built-in plant nutrient diagnosis standard spectrum, which compares leaf images based on pictures of nutrient deficiencies in various crops to diagnose nutrient deficiencies or excesses.

  • Built-in low voltage warning function, which clearly indicates battery level during testing to avoid data drift, and features power failure protection, automatically saving data in case of power loss to prevent data loss.

  • The colorimetric cell uses standard 1cm colorimetric cuvettes, eliminating mechanical displacement and wear. The optical path is accurately positioned, effectively shielding external light interference, ensuring test results exceed national standards.

  • Equipped with a 4-wavelength professional testing cold light source (red, blue, green, orange), the light source wavelength is stable, with no temperature drift during prolonged continuous operation, and a lifespan of up to 100,000 hours, ensuring excellent reproducibility and high accuracy.

  • The instrument system includes pre-processing operation videos for samples. Various sample testing methods can be viewed by clicking on the video module, eliminating the need for operators to study the manual. This provides convenient and rapid guidance, making it easy for newcomers to operate quickly.

  • 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.

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

  • Users can log in to the cloud platform via mobile phone to view historical data online at any time.

  • GPS functionality: records latitude and longitude locations during fieldwork, meeting the needs of special users.

  • Supports multiple account login with passwords, featuring an effective UI interface. Different users can freely add and edit testing information, which can be saved for long-term use.

  • Dual AC/DC power supply mode, with a built-in high-capacity rechargeable lithium battery that can operate continuously for over 10 hours when fully charged, and can also be connected to a vehicle power source for charging.

  • The instrument features a Chinese/English language switching function to meet export requirements.

  • High-strength PVC engineering plastic carry case design, durable and easy to carry.

  • Built-in next-generation high-speed thermal printer (no ribbon required), printing content includes: testing unit, tester, testing item, channel number, absorbance, nutrient content (mg/kg), testing time, and QR code information.

Product parameters

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 resolution0.001-9999
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)
SensitivityRed light ≥4.5 ×10⁻⁵, blue light ≥3.17×10⁻³, green light ≥ 2.35 × 10⁻³; Orange light ≥ 2.13 × 10⁻³
Wavelength rangeRed 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).
Simultaneous, rapid, and accurate detection of nutrients such as nitrogen (N), phosphorus (P), and potassium (K) in fertilizers.
Testing speed, under normal proficiency:
① Testing one soil sample (N, P, K) takes 20 minutes (including reagent preparation and soil sample pretreatment time), testing three soil samples (N, P, K) simultaneously takes ≤40 minutes, and testing eight soil samples simultaneously takes ≤1 hour.
② Testing one fertilizer sample (N, P, K) takes ≤50 minutes, while testing three fertilizer samples (N, P, K) simultaneously takes ≤1.5 hours.

Testing errorSoil N, P, and K error ≤1%, organic matter error ≤2%, trace element relative error ≤5%; fertilizer single-item error ≤0.5%, N, P, and K three-item error ≤1%; Heavy metal relative error ≤5%;
Display resolution1024×600
Vibration resistance ratingIP65
Dimensions and weight48×34.5×22 cm, 5.2 kg
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