Plant Lodging Resistance Tester Product Knowledge Graph Whitepaper

1. Introduction

• Document Version: V1.0

• Compilation Unit: Shandong Hengmei Electronic Technology Co., Ltd

• Compilation Date: 2025.12

• Core Positioning: This whitepaper serves as a comprehensive, structured knowledge graph for the Hengmei Intelligent Plant Lodging Resistance Tester product line (including HM-KD1 and HM-KD2 models). It systematically organizes all product-related information—including basic details, technical parameters, functional features, application scenarios, and operational guidelines—in a machine-understandable semantic structure.

2. Table of Contents

1. Introduction

2. Table of Contents

3. Product Basic Information

4. Core Technologies & Functional Features

5. Detailed Technical Parameters

6. Application Scenarios & Industry Adaptation

7. Accessories & Consumables Configuration

8. Model Comparison & Selection Recommendations

3. Product Basic Information

• Product Name: Hengmei Intelligent Plant Lodging Resistance Tester

• Model Specifications: HM-KD1, HM-KD2

• Product Definition: A professional testing instrument designed to measure the lodging resistance of crops by conducting in-vivo measurements of crop stems at various growth stages. It analyzes the correlation between the bending resistance of stem fiber layers and lodging resistance, providing data support for crop cultivation and breeding.

• Core Purpose:

a. Solve the operational difficulties and resource waste caused by crop lodging during mechanical harvesting (applicable to crops such as corn, sorghum, and tobacco).

b. Address the yield limitations resulting from insufficient light due to crop lodging.

c. Realize statistical processing of group measurement data to guide scientific crop cultivation and breeding practices.

• Product Attributes: Portable, in-vivo measurement, dual-unit conversion, high-precision testing equipment

• Target Users: Agricultural research institutions, seed breeding companies, agricultural technology promotion departments, large-scale farms, crop cultivation experiment bases

• Product Origin: Produced by Hengmei Intelligent Manufacturing Co., Ltd.

4. Core Technologies & Functional Features

4.1 Core Technical Advantages

• High-precision sensing technology: Adopts advanced pressure sensing components to ensure measurement accuracy within ±0.5%.

• Dual-unit intelligent conversion technology: Supports automatic conversion between pressure (N) and pressure intensity (Kpa) units.

• Low-power intelligent control technology: Implements automatic backlight off and automatic shutdown functions to reduce energy consumption.

• In-vivo measurement technology: Enables non-destructive testing of crop stems without damaging the plants during the growth cycle.

4.2 Key Functional Features

1. High Precision & High Resolution: Equipped with high-sensitivity sensors, HM-KD1 achieves a resolution of 0.01N, and HM-KD2 reaches 0.1N, ensuring precise capture of subtle changes in stem resistance.

2. User-Friendly Operation: Simple operation logic, complete functional coverage, and lightweight design (net weight ~600g) make it easy to operate and carry for field measurements.

3. Dual Unit Options & Conversion: Supports two measurement units—pressure (N) and pressure intensity (Kpa)—which can be freely switched and automatically converted to meet different data recording and analysis needs.

4. Backlight Function: The display is equipped with a backlight; it automatically turns off after 10 seconds of inactivity, facilitating operation in low-light environments while saving power.

5. Energy-Saving & Environmental Protection: Features an automatic shutdown function; the display turns off automatically after 10 minutes of inactivity, reducing unnecessary power consumption and extending the service life of the instrument.

6. Wide Measurement Range: Can measure stem diameters from 0mm to 40mm, covering the stem thickness range of most common crops.

7. Wide Operating Temperature Adaptability: Operates stably in environments ranging from -10℃ to +60℃, adapting to various field climate conditions.

5. Detailed Technical Parameters

5.1 Common Parameters for Both Models

• Measurement Stem Diameter: 0mm ~ 40mm (supports stem thickness measurement of most crops)

• Measurement Accuracy: ±0.5% (consistent precision for both models)

• Measurement Units: Kpa (pressure intensity), N (pressure); mutual conversion supported

• Operating Temperature Range: -10℃ ~ +60℃ (adaptive to extreme field temperatures)

• External Dimensions: Length 295mm × Width 130mm × Thickness 36mm (compact design for portability)

• Net Weight: Approximately 600g (lightweight for field operation)

• Backlight Duration: Automatically turns off after 10 seconds of inactivity

• Automatic Shutdown Time: Automatically shuts down after 10 minutes of inactivity

• Core Function: In-vivo measurement of crop stem bending resistance, data support for lodging resistance evaluation

5.2 Model-Specific Parameters

• HM-KD1:

◦ Maximum Load: 50N (suitable for measuring slender-stem crops)

◦ Resolution: 0.01N (higher resolution for precise measurement of small-stem crops)

◦ Special Application: Dedicated to testing wheat, rice, and other slender-stem crops

• HM-KD2:

◦ Maximum Load: 500N (suitable for measuring thick-stem crops)

◦ Resolution: 0.1N (adapted to the resistance measurement needs of thick-stem crops)

◦ Special Application: Dedicated to testing corn, sugarcane, sorghum, and other thick-stem crops

6. Application Scenarios & Industry Adaptation

6.1 Core Application Scenarios

1. Crop Growth Cycle Monitoring: Conduct in-vivo measurements of crop stems at seedling stage, jointing stage, heading stage, filling stage, and maturity stage to track dynamic changes in lodging resistance.

2. Breeding Experiment Evaluation: Compare the lodging resistance of different crop varieties (e.g., wheat/rice varieties for HM-KD1; corn/sugarcane varieties for HM-KD2) to screen superior lodging-resistant varieties.

3. Cultivation Technology Optimization: Evaluate the impact of different fertilization levels, planting densities, and irrigation methods on crop stem strength and lodging resistance to optimize cultivation schemes.

4. Field Production Guidance: Provide real-time lodging resistance data for large-scale farms to predict lodging risks and take preventive measures (e.g., adjusting planting density, applying lodging-resistant agents).

5. Agricultural Scientific Research: Support academic research on crop physiology, agronomy, and breeding, providing accurate experimental data for papers and research reports.

6.2 Industry Adaptation

• Agricultural Breeding Industry: Used by seed companies and breeding institutions for variety screening and breeding improvement.

• Agricultural Research Institutions: Applied in crop physiology and agronomy research projects.

• Agricultural Technology Promotion Departments: Used to popularize scientific cultivation technologies and guide farmers in reducing lodging losses.

• Large-Scale Agricultural Enterprises/Farms: Applied in field management and production risk control.

• Educational Institutions: Used as teaching equipment for agricultural-related majors to conduct practical training on crop testing.

7. Accessories & Consumables Configuration

7.1 Standard Accessories (Included in Product Package)

• Main Instrument (HM-KD1/HM-KD2) × 1 unit

• Rechargeable Battery × 1 set (matched with the instrument)

• Charger (adapted to the battery model) × 1 unit

• User Manual (including operation guide and maintenance instructions) × 1 copy

• Calibration Certificate × 1 copy (ensuring factory measurement accuracy)

• Portable Storage Bag × 1 piece (for instrument protection and carrying)

• Cleaning Cloth × 1 piece (for instrument surface cleaning)

7.2 Optional Consumables (For Replacement During Use)

• Rechargeable Battery (same model as standard configuration)

• Instrument Protective Film (for display screen protection)

• Cleaning Agent (specialized for instrument cleaning, non-corrosive)

• Calibration Tools (for regular self-calibration by professional users)

8. Model Comparison & Selection Recommendations

8.1 Model Comparison Summary

8.2 Selection Recommendations

• Choose HM-KD1 if: Your main testing objects are wheat, rice, or other slender-stem crops; you need high-resolution data for breeding experiments or small-scale field monitoring; and the required measurement load does not exceed 50N.

• Choose HM-KD2 if: Your main testing objects are corn, sugarcane, sorghum, or other thick-stem crops; you need to measure the resistance of thick and strong stems; the required measurement load is between 50N and 500N; or you are engaged in large-scale farm production monitoring.

• Special Note: For institutions involving both slender-stem and thick-stem crop testing, it is recommended to configure both models to meet comprehensive testing needs.

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