What is a Linear Irrigation System?
Home > Products
What is a Linear Irrigation System?
A linear irrigation system, also known as a linear move system, is a mechanized irrigation method designed to provide uniform water application across rectangular fields. Unlike center pivot irrigation, which rotates around a fixed point, linear systems move in a straight line across the field, ensuring even water distribution from one end to the other.
These systems are ideal for fields that are long and narrow or where circular coverage is impractical. They can operate using ditch-fed or hose-fed water sources, offering flexibility and efficiency in agricultural irrigation.
How a Linear Irrigation System Works
A linear irrigation system operates by moving continuously or intermittently across a field in a straight-line direction, distributing water through a series of low-pressure sprinklers. The movement is controlled by motorized towers that guide the system along a predetermined track or cable guidance system.
Key Components of a Linear Irrigation System:
- Water Source and Supply:
- Water is delivered to the system via a hose (hose-fed system) or an open ditch (ditch-fed system).
- Water is pumped into the system and distributed through sprinklers along the pipeline.
- Main Pipeline with Sprinklers:
- The irrigation pipe is mounted on motorized towers with wheels that move across the field.
- The sprinklers apply water uniformly, ensuring even distribution.
- Drive System:
- Motorized towers move the irrigation system across the field at a controlled speed.
- The system can be powered by electric, hydraulic, or engine-driven motors.
- Guidance System:
- A furrow guidance system follows a pre-made trench in the soil.
- A cable guidance system follows an overhead or buried wire for precise movement.
- End Guns and Additional Attachments:
- Some systems have end guns or additional sprinklers to increase the irrigated area.
- Fertigation and chemigation capabilities allow for simultaneous application of water, fertilizers, and pesticides.
Types of Linear Irrigation Systems
- Hose-Fed Linear Irrigation System:
- Connected to a main water supply line via a flexible hose.
- Ideal for fields with an existing pressurized water supply.
- Ditch-Fed Linear Irrigation System:
- Draws water from an open irrigation ditch through a floating intake or pumping system.
- Common in areas where surface water sources are readily available.
Key Features of Linear Irrigation Systems
- Straight-Line Movement – Unlike center pivot systems, which move in a circular motion, linear systems move along a straight path, covering rectangular fields efficiently.
- Uniform Water Distribution – Provides consistent water application across the entire field, reducing dry spots and over-irrigation.
- Scalability – Systems can be designed for small, medium, or large fields, offering various span lengths and customization options.
- Automated Control & Monitoring – Many systems are equipped with GPS guidance, remote controls, and automated scheduling to optimize water usage.
- Multiple Water Source Compatibility – Can be adapted to use either ditch-fed or hose-fed water delivery.
- Energy-Efficient Operations – Uses low-pressure sprinklers, reducing energy costs while ensuring effective irrigation.
Advantages of Linear Irrigation Systems
- Maximized Land Utilization
- Unlike center pivots, which leave unirrigated corners, linear systems fully cover rectangular fields, maximizing crop production.
- Efficient Water Usage
- Uses precision irrigation techniques to minimize water waste and improve efficiency.
- Labor & Cost Savings
- Automated operation reduces labor costs compared to manual irrigation methods.
- Less water and energy are required compared to traditional flood irrigation.
- Multi-Crop Compatibility
- Suitable for various crops, including grains, vegetables, fruit trees, and fodder crops.
- Simultaneous Fertigation & Chemigation
- Allows farmers to apply fertilizers, pesticides, and herbicides along with water, improving crop health and reducing input costs.
Common Applications of Linear Irrigation Systems
- Field Crops: Wheat, barley, maize, soybeans, rice, cotton.
- Vegetable Production: Carrots, potatoes, onions, tomatoes, leafy greens.
- Fruit & Nut Orchards: Apples, citrus, almonds, and other tree crops.
- Dairy & Livestock Farming: Used to irrigate pastureland and forage crops.
Factors to Consider When Choosing a Linear Irrigation System
- Field Shape & Size
- Best suited for long, rectangular fields where full coverage is needed.
- Water Source Availability
- Requires access to sufficient water supply, either through hoses or an irrigation ditch.
- Soil Type & Crop Requirements
- Some soil types may require adjusted water application rates to prevent waterlogging or runoff.
- Automation & Technology Integration
- Many systems offer remote monitoring, GPS tracking, and automated controls for precise irrigation management.
- Initial Investment & ROI
- Field Shape & Size
Comparison: Linear Irrigation vs. Center Pivot vs. Other Methods
|
Feature
|
Linear Irrigation
|
Center Pivot Irrigation
|
Drip Irrigation
|
Flood Irrigation
|
|---|---|---|---|---|
|
Field Shape
|
Rectangular
|
Circular
|
Any
|
Irregular
|
|
Efficiency
|
High
|
High
|
Very High
|
Low
|
|
Water Conservation
|
Excellent
|
Excellent
|
Best
|
Poor
|
|
Automation
|
Fully Automated
|
Fully Automated
|
Semi-Automated
|
Manual
|
|
Labor Requirement
|
Low
|
Low
|
Moderate
|
High
|
|
Suitability
|
Small to large fields
|
Large fields
|
Small & specialized fields
|
Large but inefficient fields
|
|
Installation Cost
|
Moderate
|
Moderate to High
|
High
|
Low
|
Conclusion
A linear irrigation system is a highly efficient, automated irrigation solution designed for rectangular fields. It provides uniform water distribution, labor savings, and improved crop yields, making it a cost-effective and sustainable choice for modern farmers.
Why Choose Irriwise Solutions for Linear Irrigation?
At Irriwise Solutions, we specialize in customized linear irrigation systems that fit your farm’s specific needs. Our systems are engineered for efficiency, sustainability, and maximum crop productivity.
Contact Irriwise Solutions today to explore how our linear irrigation solutions can help you achieve higher yields and improved water efficiency.