What Is Chain Harrowing?
Chain harrowing involves towing a mesh or chain-link implement behind a tractor or small utility vehicle. The harrow breaks up surface material, loosens compacted topsoil, lifts matted grass, and restores the pitch’s uniformity. Compared to drag matting, chain harrowing is a more aggressive process suited for deeper surface grooming.
Why Chain Harrowing Matters
1. Breaking Up Surface Compaction
Studs and impact compress the upper soil layer. Harrowing loosens this material, helping maintain good soil structure and encourages root growth.
2. Lifting
The chains lift flattened grass, remove light thatch, and encourage more upright, resilient growth—important during high-use months.
3. Improving Airflow and Water Penetration
By opening the surface layer, harrowing enhances drainage and oxygen availability. This is particularly beneficial in the UK’s wet climate and on heavier soils.
4. Preparing the Pitch for Renovation
During end-of-season or mid-season maintenance, harrowing helps incorporate seed, fertiliser, or topdressing into the rootzone.
When to Chain Harrow
Chain harrowing should be used more selectively than drag matting, due to its increased intensity.
During Early-Season or Pre-Season Renovation
Ideal for loosening the surface ahead of overseeding or topdressing.
After Heavy Wear Periods
Where the playing surface has compacted and grass has become matted or flattened.
In Dry, Stable Conditions
Harrowing works best when the ground is firm enough to prevent smearing but dry enough to allow penetration.
Types of Chain Harrows Used on Sports Pitches
While agricultural versions exist, sports turf professionals use harrows specifically designed for fine turf or pitch management. These typically include:
1. Flexible Chain-Link Harrows
Good for general surface agitation and lifting grass.
2. Tine-Faced Chain Harrows
More aggressive; useful for breaking up compacted areas or incorporating soil amendments.
3. Three-Way or Reversible Harrows
Allow adjustment of aggressiveness depending on pitch condition and time of season.
How to Chain Harrow a Pitch: Step-by-Step
Inspect the surface first
Remove debris and repair major divots. Check moisture levels to ensure the pitch isn’t too soft or too wet.Choose the correct side or aggressiveness of the harrow
Lighter settings early in the season; more aggressive settings during renovation.Work in straight, controlled passes
Maintain consistent speed and slightly overlap each pass to ensure even treatment.Avoid tight turning on the playing area
Harrows can tear turf if turned sharply.Finish with brushing or Mowing
This helps settle the surface and enhance presentation ahead of play.
Seasonal Considerations
Winter / Early Season
Avoid harrowing when the pitch is saturated or frozen—this can cause severe surface damage.
Spring
An excellent time for more intensive harrowing as part of renovation or pre-season preparation.
Summer
Useful for lifting grass and dealing with dry compaction; ensure conditions are not excessively hard.
Autumn
Harrowing assists with integrating seed and topdressing as the pitch is repaired for the off-season.
Conclusion
Chain harrowing is a key maintenance technique for rugby league pitches, offering benefits that range from improved soil structure to better grass quality and overall surface consistency. When used at the right times and with the proper settings, it can dramatically extend pitch lifespan and improve playing conditions across all levels of the game.
