Project Overview

● Project Name: High-Standard Farmland Smart Agricultural Infrastructure Project

● Location: Huantai County, Zibo City, Shandong Province, China

● Crops: Corn, Wheat, and Soybean (Primary Grain & Oil Crops / Cereal-Legume Crop Rotation)

● Terrain: Large-scale flat open fields (Contiguous arable land)

● Water Source: Deep-well groundwater

● Solution Provider: Shandong Yunhai Intelligent Equipment Co., Ltd.

● Integrated Solution: Full High-Standard Farmland Suite (Automatic Self-Cleaning Filtration, Smart Large-Flow Fertigation, VFD Constant-Pressure Pumping, and IoT Zoned Shift-Irrigation)

Project Highlights & Key Metrics

● 35%+ Irrigation Water Savings

● 30%+ Fertilizer Utilization Rate Increase

● 30%–60% Pumping Energy Efficiency Gain

● 1 Operator Manages Thousands of Mu (Hundreds of Hectares) Remotely

● Enhanced Grain Yield & Quality (Higher 1,000-Grain Weight & Lodging Resistance)

1. Background & Challenges

Located in a core grain-producing region and high-standard farmland demonstration zone on the Huang-Huai-Hai Plain, this project focuses on the intensive, large-scale production of open-field grain and oil crops (including wheat-corn rotation and soybean-corn strip intercropping).

Grain and legume crops have critical water and nutrient absorption windows during key phenological stages—such as jointing, heading, flowering, grain-filling, and pod-setting. Timely, balanced irrigation and fertilization directly determine final yields and grain quality.

Core Challenges:

● Vast Operational Radius: Flat, large-scale contiguous fields require extensive management. Conventional manual labor is cost-prohibitive and lacks application uniformity.

● Sediment & Clogging Risks from Well Water: Deep-well water contains fine sand, suspended solids, and mineral particles, posing severe clogging risks for field drip tapes and micro-sprinklers.

● Resource Inefficiency: Traditional flood irrigation and manual top-dressing cause severe water waste, nutrient runoff, soil compaction, and non-point source pollution.

To overcome the challenges of high labor intensity and uneven nutrient delivery, the project deployed Shandong Yunhai Intelligent Equipment’s high-standard open-field fertigation and filtration system, transforming traditional farming into a digital, precision-driven operation.

2. Integrated Solutions & System Architecture

To accommodate large-radius field operations and sandy groundwater conditions, Yunhai Intelligent Equipment engineered a comprehensive solution: "Headworks Multi-Stage Filtration → Smart Fertigation Dosing → Constant-Pressure Pipe Distribution → Automated Zoned Shift-Irrigation":

① Heavy-Duty Automatic Backwashing Filtration System (Media/Disc Filter Combination)

● Multi-Stage Depth Filtration: Combines centrifugal/media depth filtration with high-efficiency disc filters to capture sand, silt, and micro-impurities directly at the wellhead, ensuring crystal-clear irrigation water.

● Differential Pressure Automatic Backwash: Equipped with automated pressure-differential and timer-based self-cleaning mechanisms. Individual filter units clean sequentially without interrupting downstream water flow, preventing emitter clogging and extending pipeline lifespan.

② High-Standard Open-Field Smart Fertigation System

● Large-Flow Precision Injection: Built specifically for field crops, the fertigation machine utilizes multi-channel electronic flow meters for automated, quantitative nutrient dosing.

● Phenology-Driven Nutrient Matching: Fertilization curves automatically match specific growth milestones (e.g., wheat green-up/jointing, corn whorl/tasseling top-dressing, soybean pod-filling).

● Direct Root-Zone Delivery: Integrated with field drip/sprinkler networks, nutrients are delivered directly to the root absorption zone, eliminating the guesswork of conventional broadcast fertilization.

③ Constant-Pressure VFD Water Supply & Safety Protection System

● Dynamic VFD Pressure Control: Intelligent Variable Frequency Drive (VFD) control panels automatically adjust pump speed and power consumption based on active field valves and real-time flow demand, maintaining constant pipeline pressure.

● Comprehensive Equipment Protection: Features soft start/stop, water hammer suppression, dry-run protection, and overvoltage/overload alerts, reducing pump energy consumption by 30% to 60% while protecting the main distribution lines.

④ Automated Zoned Shift-Irrigation & IoT Remote Management

● Field Bus & Wireless Valve Control: Heavy-duty anti-interference field decoders and solenoid valves overcome long-distance wiring challenges across open fields, enabling automated grouped shift-irrigation schedules.

● IoT Cloud Control Platform: Connected via 4G/Ethernet to the Yunhai Cloud. Agronomists and managers can monitor system pressure, irrigation progress, and device health in real time via mobile apps, web browsers, or control panels—achieving one-touch remote scheduling and unattended operations.

3. Key Results & Business Value

● Substantial Resource Conservation & Eco-Friendly Cultivation: Compared to conventional flood irrigation, the system delivers over 35% water savings and boosts fertilizer utilization by over 30%, drastically reducing fertilizer leaching and non-point source pollution while safeguarding soil health.

● Streamlined Farm Operations ("One-Person Multi-Field Management"): High automation replaces multi-person, multi-day fieldwork. A single operator can manage thousands of mu (hundreds of hectares) via smartphone, significantly lowering field labor costs.

● Stable Yield Growth & Grain Quality: Uniform, on-demand nutrient delivery strengthens lodging resistance and drought resilience in wheat, corn, and soybeans. This promotes fuller kernels, increases 1,000-grain weight, and secures higher crop yields and market quality.

● High-Standard Farmland Demonstration Benchmark: The successful commissioning of this project establishes a proven, replicable blueprint for "Water-Saving Irrigation + Digital Agriculture + Precision Fertigation" across modern grain-producing regions.