Precision agriculture has changed how farmers install subsurface drainage, and laser systems and RTK GPS are the two leading guidance choices for tile plows. Here’s how to decide between them.
The Two Systems, Explained
A laser-guided system uses a transmitter and receiver setup to maintain a consistent elevation reference across the field. RTK GPS relies on satellite signals to deliver real-time, centimeter-level positioning accuracy.
Six Factors to Weigh
- Field size and shape — laser suits smaller to medium fields; RTK handles larger, irregularly shaped ground better
- Terrain and obstacles — laser needs line of sight; RTK navigates obstacles more easily
- Accuracy requirements — laser controls elevation; RTK adds unmatched lateral positioning accuracy as well
- Cost — laser systems cost less upfront; RTK carries higher equipment and subscription costs
- Ease of use — laser is straightforward; RTK takes more technical know-how
- Future expansion — laser has limited scalability; RTK integrates with other precision ag technology
Which Should You Choose?
The right system comes down to your specific field conditions, accuracy requirements, budget, and long-term goals — and it’s worth a conversation with a precision agriculture expert before you commit either way.