Irrigation Course

Lesson 1 • Water Sources and Quality

Identifies surface water, groundwater, and reclaimed water sources. Connects source quality to system design and crop suitability decisions.

Lesson 2 • Regulatory and Environmental Context

Surveys water rights frameworks, environmental flow requirements, and conservation mandates. Positions irrigation practice within legal and ecological constraints.

Lesson 3 • Crop Water Requirements

Explains evapotranspiration components and crop coefficients. Links atmospheric demand to actual crop water use for scheduling purposes.

Lesson 4 • Water in the Soil-Plant System

Covers soil water potential, field capacity, and wilting point. Provides the physical framework underlying every irrigation scheduling decision.

Lesson 1 • Filtration and Water Treatment

Covers screen, disc, and media filters plus chemical injection equipment. Directly supports emitter longevity and water quality management.

Lesson 2 • Pumps, Pipes, and Valves

Introduces centrifugal and turbine pumps, pipe materials, and control valves. Provides component-level knowledge needed for system design and troubleshooting.

Lesson 3 • Sprinkler Irrigation Systems

Explains fixed, portable, and center-pivot sprinkler configurations. Connects nozzle characteristics to application uniformity and wind drift losses.

Lesson 4 • Surface Irrigation Methods

Covers furrow, border strip, and basin irrigation mechanics. Establishes baseline understanding before introducing pressurized alternatives.

Lesson 1 • Friction Loss Calculations

Applies Hazen-Williams and Darcy-Weisbach equations to lateral and mainline pipes. Enables accurate head-loss estimation across system segments.

Lesson 2 • Fundamental Hydraulic Principles

Covers Bernoulli's equation, continuity, and energy grade lines. Establishes the mathematical foundation for all subsequent pipe-sizing calculations.

Lesson 3 • Pump Selection and Performance

Interprets pump curves, system curves, and operating points. Enables correct pump selection and identification of cavitation or inefficiency risks.

Lesson 4 • Pressure Variation and Uniformity

Analyzes allowable pressure variation limits and their effect on emission uniformity. Connects hydraulic design to distribution uniformity targets.

Lesson 1 • ET-Based Scheduling

Uses reference ET and crop coefficients to compute daily water depletion. Links weather station data to automated irrigation trigger calculations.

Lesson 2 • Plant-Based Stress Indicators

Introduces canopy temperature, stem water potential, and visual stress signs. Adds biological feedback to complement soil and climate scheduling methods.

Lesson 3 • Scheduling for Different Crops

Adapts scheduling logic to field crops, vegetables, orchards, and turf. Demonstrates how crop sensitivity periods alter deficit tolerance and timing.

Lesson 4 • Soil Moisture Monitoring Methods

Compares tensiometers, capacitance probes, and gravimetric sampling. Provides sensor selection and placement guidance for accurate root-zone monitoring.

Lesson 1 • Control System Design

Designs valve zones, controller programming, and automation logic. Integrates scheduling algorithms with physical valve and sensor infrastructure.

Lesson 2 • Site Survey and Data Collection

Covers topographic survey, soil mapping, and crop layout documentation. Establishes the data inputs required before any design calculations begin.

Lesson 3 • Design Criteria and Standards

Sets application rate, uniformity, and efficiency targets for the design. Anchors all component selections to measurable performance benchmarks.

Lesson 4 • Lateral and Mainline Layout

Applies spacing rules and hydraulic limits to position laterals and mains. Produces a field layout that meets uniformity targets within pressure constraints.

Lesson 1 • Trenching and Pipe Installation

Covers trench depth, bedding, pipe jointing, and backfill compaction. Ensures buried infrastructure meets pressure and longevity requirements.

Lesson 2 • Pump and Filtration Station Setup

Guides pump priming, alignment, and filtration station assembly. Establishes correct operating conditions before system commissioning.

Lesson 3 • Controller and Sensor Wiring

Covers valve wire routing, sensor cable installation, and controller termination. Ensures reliable signal transmission for automated operation.

Lesson 4 • Emitter and Head Installation

Details correct spacing, depth, and orientation for drip emitters and sprinkler heads. Prevents installation errors that reduce uniformity or cause damage.

Lesson 1 • Pump and Valve Servicing

Covers seal replacement, impeller inspection, and solenoid valve testing. Maintains hydraulic performance and prevents unplanned system downtime.

Lesson 2 • Routine Inspection Procedures

Establishes inspection frequency, checklists, and record-keeping protocols. Provides the systematic approach needed to detect problems before they escalate.

Lesson 3 • Winterization and Seasonal Startup

Guides compressed-air blowout, drain valve operation, and spring recommissioning. Protects system components from freeze damage and ensures reliable seasonal restart.

Lesson 4 • Filter Maintenance and Water Treatment

Details backflush scheduling, media replacement, and chemical injection calibration. Prevents water quality issues from degrading emitter performance.

Lesson 1 • Energy Audit and Pump Efficiency

Evaluates pump wire-to-water efficiency and identifies energy waste. Connects pump performance to operating cost and carbon footprint reduction.

Lesson 2 • Application Efficiency Assessment

Measures deep percolation, runoff, and evaporation losses to compute efficiency. Identifies where water is lost and quantifies improvement potential.

Lesson 3 • Reporting and Continuous Improvement

Structures performance reports and improvement cycles using key metrics. Builds the professional habit of data-driven irrigation management.

Lesson 4 • Distribution Uniformity Testing

Applies catch-can and flow-meter methods to quantify distribution uniformity. Provides the diagnostic baseline for all subsequent optimization decisions.