
Hollow tining is a process that golf course groundskeepers use to maintain the health and quality of the greens. It involves poking holes into the ground and removing small cores of turf to alleviate soil compaction caused by foot traffic, which can restrict root growth and water infiltration. By poking holes into the ground, groundskeepers can improve drainage and allow more oxygen, water, and nutrients to reach the roots of the grass, promoting healthier grass and better playing surfaces.
| Characteristics | Values |
|---|---|
| Purpose | To improve the health of the grass by relieving soil compaction, allowing water, air, and nutrients to reach the roots |
| Process | Removing small cores of turf from the green using a hollow tine, a round tube that penetrates the ground and collects the core |
| Frequency | Once or twice a year, during the quieter playing season to minimise disruption |
| Benefits | Enhances drainage and oxygen flow to the roots, improves soil structure, promotes disease reduction and overall grass health |
| Follow-up | Sand top dressing to fill the holes, aiding water movement and further enhancing drainage and oxygen flow |
| Alternatives | Solid tining, star tining, air-injection |
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What You'll Learn

Hollow tining is a form of turf aeration
Soil compaction restricts the grass roots' ability to absorb oxygen and moisture, impacting the health of the grass. By poking holes in the ground, greenkeepers can alleviate this compaction, allowing the turf to expand and facilitating better absorption of air and water. This process also helps to improve drainage, preventing water from pooling on the surface.
Following hollow tining, sand top dressing is often applied to fill the holes, improving soil structure and further enhancing drainage and oxygen flow to the roots. This step is crucial for a swift recovery, ensuring that the greens return to a smooth and fast playing surface.
The frequency of hollow tining varies but is typically performed once or twice a year during quieter playing seasons to minimise disruption. This maintenance schedule ensures that golf courses remain in top condition year-round, providing a superior golfing experience for players.
Hollow tining is an essential aspect of course maintenance, demonstrating the dedication of greenkeepers worldwide. It may cause temporary disruption, but it is necessary for the long-term health and playability of the greens.
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It helps to prevent soil compaction
Hollow tining is an essential aspect of golf course maintenance. It involves removing small cores of turf from the green, creating holes that allow air, water, and nutrients to reach the roots of the grass. This process is crucial for maintaining the quality of the playing surface and promoting grass health.
One of the main benefits of hollow tining is its ability to prevent soil compaction. Golf greens endure significant foot traffic, which compacts the soil over time. This compaction makes it difficult for water and nutrients to penetrate the soil and for the grass to breathe, restricting root growth and water infiltration. Hollow tining relieves this compaction by creating holes in the ground, allowing the turf to expand and facilitating better absorption of air and moisture.
The process of hollow tining involves using a hollow tine, which is a round tube that penetrates the ground and collects a core of soil. When the tube penetrates the ground again, the core is pushed out through a hole. This creates holes in the green that improve drainage and oxygen flow to the roots. The cores removed during hollow tining can be replaced with sand or other materials through a process called top dressing, which helps fill the holes and further enhances drainage and oxygen flow.
By preventing soil compaction, hollow tining helps to maintain the health and quality of the golf greens. It ensures that the grass roots have access to sufficient moisture and oxygen, promoting healthy root growth and a resilient playing surface. The process of hollow tining is typically carried out during the quieter playing seasons to minimise disruption to golfers and allow for the rapid recovery of the greens.
In conclusion, hollow tining is an important technique used in golf course maintenance to prevent soil compaction. By creating holes in the green, hollow tining relieves compaction, improves drainage, and facilitates better absorption of air and moisture, ultimately contributing to the overall health and playability of the golf course.
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It improves drainage and oxygen flow
Hollow tining is a vital process for the maintenance of golf greens. It involves poking holes into the ground and removing small cores of turf from the green. This process is done to alleviate soil compaction caused by foot traffic. Compacted ground restricts root growth, water infiltration, and the grass roots' ability to absorb oxygen and nutrients.
Hollow tining relieves compaction and improves drainage and oxygen flow to the roots. This is done by allowing the turf to expand and facilitating better absorption of air and moisture. The holes created by hollow tining help move water away from the surface, aiding in drainage. It also increases oxygen flow to the roots by allowing air to penetrate the soil. This process of aeration is crucial for maintaining healthy grass and turf.
The cores removed during hollow tining can be replaced with a top dressing, such as sand, to fill the holes. This step helps improve soil structure and further enhances drainage and oxygen flow. Sand helps to digest organic matter, enhancing aeration and improving the speed of greens. It is important to perform hollow tining during the warm season when temperatures favour rapid shoot growth and coverage of the turf openings.
Additionally, hollow tining can be advantageous for golfers while the greens are recovering. The softer surface during recovery allows for more aggressive play with less risk of bouncing off the green. The frequency of hollow tining varies, but most golf courses undergo the process once or twice a year during quieter playing seasons to minimise disruption.
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It's usually done during quieter seasons
Hollow tining is generally done outside of the main playing season, often in early autumn. This is because it is important that the tining is completed before the weather turns wet and cold, allowing time for growth and for the holes to seal up. Therefore, the best time to hollow tine is in late August or early September, but this does coincide with the playing season at most clubs. Some clubs will look to hollow tine very early in the spring season.
The process involves removing small cores of turf from the green, which is crucial for the health of the grass. These removed plugs of earth might seem like a hindrance, but they play a pivotal role in maintaining the quality of the playing surface. Golf greens endure a lot of foot traffic, which compacts the soil and makes it difficult for water and nutrients to penetrate and for the grass to breathe. Hollow tining relieves this compaction, allowing the grass roots to absorb moisture and oxygen more efficiently.
However, the process can be disruptive as it often requires a tractor on the green. To minimise disruption, some clubs will use needle tines throughout the playing season, which can be done without the golfer's knowledge. Additionally, micro-tining can be carried out during the season to release gas from the greens and allow oxygen in, improving water movement and percolation.
As hollow tining is typically done during quieter seasons, it ensures that the greens remain in top condition year-round, providing a superior golfing experience for players.
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It's followed by top dressing to fill the holes
Hollow tining is a process that involves removing small cores of turf from a golf green, which creates holes in the ground. This form of turf aeration is crucial for the health of the grass as it relieves soil compaction, allowing grass roots to absorb water, nutrients, and oxygen more efficiently. Following hollow tining, top dressing is applied to fill the holes with quality sand, aiding water movement and drainage. This step improves the soil structure and enhances oxygen flow to the roots, facilitating plant growth.
Top dressing is an essential step in the process of hollow tining golf greens. Once the cores of turf are removed, leaving holes in the green, top dressing is used to fill these holes and replenish the soil. This process is often referred to as a "soil exchange programme." The top dressing mix typically consists of sand and sometimes seed, which is integrated into the soil through the holes created by hollow tining.
The purpose of top dressing is to improve the physical properties of the soil and promote better drainage. By filling the holes with sand, water can move more laterally through the soil, enhancing drainage and reducing the risk of waterlogging. This process also helps to break up any remaining soil compaction, ensuring that the grass roots have access to adequate air and moisture.
Additionally, top dressing can help to level the surface of the green, creating a smoother and faster playing surface. It aids in the swift recovery of the greens after hollow tining, ensuring that they return to their optimal condition for golfers to enjoy. The frequency of hollow tining and top dressing varies, but most golf courses undergo this process once or twice a year during quieter playing seasons to minimise disruption.
The combination of hollow tining and top dressing is a meticulous practice that showcases the dedication of greenkeepers worldwide. By understanding the intricacies of this process, golfers can appreciate the effort that goes into maintaining the golf course and can even utilise the softer greens during the recovery period to their advantage.
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Frequently asked questions
Hollow tining is a process that involves removing small cores of turf from the green to improve the health of the grass.
Hollow tining is necessary to relieve soil compaction, allowing turf to expand and facilitating better absorption of air and moisture.
Hollow tining is generally done outside of the main playing season, often in early autumn. It is important that the tining is completed before the weather turns wet and cold so there is time for growth and for the holes to seal.
A hollow tine, a round tube that penetrates the ground, collects a core and, when the tube penetrates the ground again, the core is pushed out through a hole. This allows greenkeepers to remove poor-quality soil and thatch and replace it with sand to aid water movement and drainage.











































