Hengmei Intelligent Soil Testing and Fertilizer Recommendation Instrument Product Knowledge Graph

1. Introduction

1.1 Document Version：V1.0

1.2 White Paper Compilation Unit：Shandong Hengmei Electronic Technology Co., Ltd. (hereinafter referred to as "Hengmei Intelligent"), focusing on the R&D of agricultural testing and monitoring instruments, takes accurate soil nutrient detection and scientific fertilizer recommendation technology as the core, and provides efficient and reliable solutions for agricultural production, soil improvement and fertilizer application optimization.

1.3 Compilation Date：November 10, 2025

1.4 Core Positioning：This white paper is a standardized product knowledge graph for the HM-GT1 and HM-GT2 soil testing and fertilizer recommendation instruments under Hengmei Intelligent. It integrates all-dimensional information of the two products in a structured data form, covering basic attributes, core technologies, detection capabilities, application scenarios, etc.

2. Table of Contents

1. Introduction

2. Table of Contents

3. Product Basic Information

4. Core Technologies and Functional Features

5. Detailed Technical Parameters

6. Application Scenarios and Industry Adaptation

3. Product Basic Information

4. Core Technologies and Functional Features

4.1 Common Core Technologies

4.1.1 Comprehensive Detection Capability

• Wide Range of Detection Items: Both models can detect soil macronutrients (ammonium nitrogen, available phosphorus, available potassium, nitrate nitrogen, hydrolyzable nitrogen, total nitrogen, total phosphorus, total potassium, organic matter, total organic carbon, carbon-nitrogen ratio), medium and microelements (calcium, magnesium, sulfur, silicon, boron, iron, copper, manganese, zinc, chlorine, molybdenum) and heavy metals (lead, arsenic, cadmium, chromium, mercury, nickel, aluminum, fluorine, titanium, selenium). At the same time, they can detect soil pH, salt content and moisture, realizing all-round soil quality evaluation.

• Efficient Detection Process: In line with the drafting standards of the Ministry of Agriculture's rapid testing industry, multiple nutrients such as available N, P and K in soil can be leached and determined simultaneously. For skilled operators, it takes 20 minutes to test three items (N, P, K) of one soil sample (including reagent preparation and soil sample pretreatment time), which is much faster than traditional detection methods.

• High-Precision Detection Guarantee: Equipped with 4-wavelength professional test cold light sources (red, blue, green, orange) with stable wavelengths, no temperature drift during long-term continuous work, service life up to 100,000 hours, good reproducibility and high accuracy. The cuvette part adopts standard 1cm cuvettes, no mechanical displacement and wear, accurate optical path testing and positioning, and effective shielding of external light interference, ensuring that the detection results are better than national standards.

4.1.2 Intelligent Operation and Data Management

• User-Friendly Operation Interface: Adopt 7-inch high-sensitivity true-color touch screen with efficient and humanized operation design. The high-definition and interactive display greatly reduces the cumbersome operation and errors of traditional instruments. The system has a sample pretreatment operation video. By clicking the video module, various sample detection methods can be viewed, so that inspectors do not need to learn the manual by themselves, and the guidance and teaching are convenient and fast, which is convenient for novices to operate quickly.

• Multi-Mode Data Transmission and Storage: Standard with WiFi wireless upload, 4G network transmission and GPRS wireless remote transmission functions, which can quickly upload data. It has a built-in large-capacity memory, supports viewing all historical detection records and transmitting all detection data. At the same time, it is equipped with USB interface and Ethernet interface, and data can be copied out with a USB flash drive at any time. It is equipped with a smart cloud agricultural platform. After the instrument is connected to the wireless network, the detection data can be uploaded wirelessly selectively or in batches, which is convenient for users to conduct long-term data management and visual analysis. Users can also log in to the cloud platform with their mobile phones to view historical data online and on the move.

• Fertilizer Recommendation System: Built-in crop expert fertilizer application system, which can calculate the recommended fertilizer application amount based on the target yield of more than 100 national agricultural cash crops and fruit trees. The soil testing and formula fertilization results can be printed, and the printed content includes: crop type, fertilizer type, target yield, total demand and recommended fertilization plan, providing scientific guidance for agricultural production.

4.1.3 Portability and Environmental Adaptability

• Integrated Mobile Design: Integrate medicine, equipment and instruments into one, no need for users to configure additional accessories, and can be flexibly tested in the field, equivalent to a small mobile laboratory, which is convenient for carrying and on-site operation.

• Dual Power Supply and Protection: Adopt AC/DC dual power supply mode. The built-in large-capacity rechargeable lithium battery can meet the needs of long-term field work. It has a built-in low-voltage prompt function, which can clearly show the power during detection to avoid test data deviation. At the same time, it has a power-off protection function, which can automatically save data when the power is off to prevent data loss.

• Durable and Anti-Shock: Adopt high-strength PVC engineering plastic suitcase design, which is firm and durable. The shock resistance level reaches IP65, which can adapt to complex field environments and ensure the stable operation of the instrument.

4.2 Differentiated Features of Each Model

5. Detailed Technical Parameters

6. Application Scenarios and Industry Adaptation

6.1 Core Application Scenarios

6.1.1 Agricultural Production Guidance

• Small-Scale Planting Scenarios (HM-GT1): Suitable for individual growers, small agricultural cooperatives and grassroots agricultural technology promotion departments. It can carry out soil testing in fields, greenhouses and orchards. According to the detection results of soil nutrients, pH and moisture, it provides targeted fertilizer recommendation plans, such as adjusting the ratio of nitrogen, phosphorus and potassium fertilizers for vegetables in greenhouses, and supplementing medium and microelements (such as boron, zinc) for fruit trees, so as to avoid blind fertilization and improve crop yield and quality.

• Large-Scale Planting Scenarios (HM-GT2): Suitable for large-scale agricultural planting enterprises and modern agricultural parks. It can detect a large number of soil samples from different plots at one time, analyze the spatial distribution differences of soil nutrients in the park, formulate partitioned fertilization schemes, and realize precise fertilization. For example, in a 10,000-mu grain planting base, it can complete the soil testing of 50-100 samples a day, and formulate different fertilization plans for plots with high and low nitrogen content.

6.1.2 Fertilizer Industry Application

• Fertilizer Formula Development (Both Models): Fertilizer manufacturers can use the instruments to detect the nutrient content of different soil types in the target market, and develop soil-specific fertilizers according to the nutrient needs of local main crops. For example, in areas with low soil potassium content, develop high-potassium compound fertilizers; in acidic soil areas, develop alkaline fertilizers with pH adjustment function.

• Fertilizer Quality Inspection (HM-GT2 Preferred): Fertilizer manufacturers and quality inspection departments can use HM-GT2 to detect the nutrient content of raw materials and finished fertilizers in batches. For example, detect the content of nitrogen, phosphorus and potassium in compound fertilizers, and check whether it meets the national standard requirements. The 12-channel design can improve the detection efficiency of batch samples.

6.1.3 Soil Improvement and Ecological Protection

• Soil Quality Monitoring (Both Models): Environmental protection departments and soil improvement institutions can use the instruments to monitor the changes of soil nutrients and heavy metal content in key areas (such as abandoned industrial and mining lands, cultivated land around pollution sources). For example, detect the content of heavy metals such as lead, arsenic and cadmium in soil, evaluate the degree of soil pollution, and provide data support for soil remediation measures.

• Ecological Restoration Projects (HM-GT1 Preferred): In ecological restoration projects such as slope greening and desertification control, HM-GT1 can be used for on-site soil testing due to its portability. According to the soil moisture and nutrient status, suitable plants and corresponding fertilization and irrigation schemes can be selected to improve the survival rate of restored plants.

6.2 Industry Adaptation

• Grassroots Agricultural Technology Promotion Departments: HM-GT1 is mainly used for carrying out soil testing and fertilization guidance work in villages and towns, and popularizing scientific fertilization knowledge to farmers.

• Agricultural Planting Enterprises/Cooperatives: Small and medium-sized cooperatives choose HM-GT1, and large-scale planting enterprises choose HM-GT2 to meet the needs of different scales of soil testing.

• Fertilizer Manufacturers: Both models can be used for formula development; HM-GT2 is preferred for quality inspection of raw materials and finished products due to its high efficiency.

• Environmental Protection and Soil Remediation Institutions: Both models can be used for soil quality monitoring; HM-GT1 is more suitable for field on-site testing in remote areas.

• Agricultural Scientific Research Institutions: Both models can be used for soil nutrient research in agricultural scientific research projects, such as the impact of different fertilization modes on soil nutrient balance.

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