It's a perfect, sunny morning and you've just reached the first green in regulation. You feel great and you know you're within birdie range. Then, you see them, those little holes in the green. Arrrgh! They've just aerified the course, and it's going to ruin your round, right?
Well, maybe not. Consider the fact that PGA Tour legend Tom Watson shot a sizzling record 58 at his then-home course, Kansas City Country Club, just days after the greens had been aerified.
Consider also that aerification is merely a short-term disruption that has long-term benefits for the course. When you see them, remember that without those little holes, the greens would eventually die.
Like so many things, the quality of a good putting green is more than skin deep. In fact, the condition of a green has a lot to do with what goes on below the surface. In order to keep grass growing at less than 1/8" you have to have deep, healthy roots. Good roots demand oxygen. In good soil, they get the oxygen from tiny pockets of air trapped between soil and sand particles.
Over time, the traffic from golfers' feet (as well as heavy mowing equipment) tends to compact the soil under the putting green - particularly when the soil contains a lot of clay. When soil becomes compacted, the air pockets on which the roots depend are crushed, and the roots are essentially left gasping for air. Without oxygen, the grass plants will wither and die.
Aerification is a mechanical process that creates more air space in the soil and promotes deeper rooting, thus helping the grass plants stay healthy. In most cases, it's done by removing 1/2-inch cores (those plugs you sometimes see near a green or in fairways). The spaces are then filled with sand "topdressing" that helps the soil retain air space and makes it easier for roots to grow downward.
Consider also that aerification is merely a short-term disruption that has long-term benefits for the course. When you see them, remember that without those little holes, the greens would eventually die.
Like so many things, the quality of a good putting green is more than skin deep. In fact, the condition of a green has a lot to do with what goes on below the surface. In order to keep grass growing at less than 1/8" you have to have deep, healthy roots. Good roots demand oxygen. In good soil, they get the oxygen from tiny pockets of air trapped between soil and sand particles.
Over time, the traffic from golfers' feet (as well as heavy mowing equipment) tends to compact the soil under the putting green - particularly when the soil contains a lot of clay. When soil becomes compacted, the air pockets on which the roots depend are crushed, and the roots are essentially left gasping for air. Without oxygen, the grass plants will wither and die.
Aerification is a mechanical process that creates more air space in the soil and promotes deeper rooting, thus helping the grass plants stay healthy. In most cases, it's done by removing 1/2-inch cores (those plugs you sometimes see near a green or in fairways). The spaces are then filled with sand "topdressing" that helps the soil retain air space and makes it easier for roots to grow downward.
Other aerification techniques use machines with "tines" or knives that simply poke holes through the soil profile. A newer technique even uses ultra high-pressure water that's injected through the soil profile to create small holes that relieve some compaction but heal quickly.
The bottom line is that aerification is a necessary practice. But before you curse the superintendent for ruining your day, just think of Tom Watson.
This article is credited to the Golf Course Superintendents Association of America website.
At Staley my first observation of the putting surface I noted the soft surface. This is likely a result of higher organic content in the top 4" of the root zone. We have already enlisted the services of ISTRC to help us determine the physical properties of our root zone. We will ultimately make our aeration master plan after the ISTRC report is completed. ISTRC tests the majority of the top 100 golf courses in the country providing sound recommendations resulting in superb playing surfaces. We will base our aeration practices on science and you will see the positive results each time we aerate the greens. This spring we will pull 1/2" hollow tines on very close spacing. We are using top of the line aeration equipment to ensure a high quality result. We will fill the holes with sand and then we will roll the greens multiple times to smooth the surface. You should be putting high quality greens within 10 days of the aeration process. We are scheduled to aerate greens on April 6th and 7th.
Thank you for your cooperation. Aeration will play a huge part in our goal of providing the best putting surfaces in the city.
Brent
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