When is it time to open the Golf Course?
Spring is an exciting time of the year. There is a buzz and
energy throughout the environment. You sense it from people and pets on warm,
sunny days. From an agronomic perspective, plants awaken, triggered by soil
temperatures, day length, and other factors. Golf fans can enjoy watching Tour
events on the West Coast and through the Southern U.S. and Florida; teasing the
upcoming shift from cool and grey to warm and colorful. For the Agronomic
Team here at Weibring Golf club, we are anxious to get back to the servicing
the turf, soils, and ornamental components of the golf course. We
again look forward to analyzing how weather and people interact with our golf
course environment.
Our first analysis of the season is deciding when to open the golf
course. One approach we could use to make this decision is strictly the
economic impact. This results in opening and closing the golf course throughout
the off-season based on fluctuating weather. When air temperatures reach
an acceptable level, the supply-demand ratio favors the golf course
financially. Supply is limited with only a few course in the area being open.
Demand is increased because of "cabin-fever" and also from a short
day length, confining all rounds within a 6-8 hour window. Golf course staffing
is reduced considerably, with only key employees being present in the
off-season. The net result is a situation that favors profitability, but provides no consideration to damage of turf.
The opposite approach is to base the decision on the agronomic
impacts to the turfgrass ecosystem. This approach allows the turfgrass to
be completely free from any undue stress during the turf's dormant stage. Given
that the turf is not actively growing, and thus not able to recover, it makes
sense to not injure the turf with foot and cart traffic, divots, ball marks,
and all other injurious activities in-acted by playing the game of golf.
Over protection of the golf course occurs, with closure at the first frost
development in the soil and isn't lifted until soil moisture and active turf
growth resumes resulting in a green golf course (think first time you
mow your yard). Profitability is reduced due to missed opportunities to open and
generate revenue.
The approach we take here at Weibring Golf Club is what I would
term as Turf Agronomy Economics (I totally made that term up... but, I think it
accurately describe how we approach decisions). We strive to find the
perfect balance between protection of the turf and profitability. While
no two years are alike, the key factors I analyze are turf moisture and
firmness. Moisture and firmness should be near the averages found during
the growing season and the subsurface must allow water to freely peculate
through the profile. If the lower profile is slowed by frozen pore space
or drain lines, water will move upward in the profile due to the strong
cohesive and adhesive properties of water. Thus keeping the upper portion of
the soil profile wet, or in some cases increasing total soil moisture as
daytime temperatures rise.
Moisture and firmness in the top couple inches are key, because in
our turf nearly all root mass is within that portion of the profile.
In cool-season plants, like Bentgrass and Kentucky bluegrass, roots are
developed during the fall and to some extent spring, but lose mass during the
stress of summer. If we allow the golf course to open during a time of the year
that is soft and wet, without active growth for recovery, we injure and shear
roots, reducing root mass before the upcoming stress of summer. Because
of the standards we set for our golf course, we need to protect our
roots. Mowing height of a green is the single biggest factor impacting
greens speeds. Lower height equals faster green speeds. Like green
speeds, rooting is also correlated to mowing height. It is a direct
relationship, meaning that as mowing height decreases, total rooting depth and
mass decrease. In order to allow more winter play we would have to compensate
by raising our height of cut to encourage survival of root mass heading into
summer, which would most likely slow our greens speeds below our set
standards. A former boss and mentor of mine, summed it up by saying:
"If you want great greens in August, keep people off them in the
winter."
As I mentioned, over protection of the course can occur. At
some point the financial impact of opening can offset potential damaged caused
by playing golf. We don't have to wait until the turf has greened up
completely and mowing has occurred on a regular basis. Here at Weibring Golf
club, we are comfortable opening the golf course when conditions warrant, but
will close back down if conditions change. You'll notice the golf course is not
"green", but growth and potential recovery are occurring in the crown
and roots of the plants.
As you can see, many factors affect when we open the golf
course. Overall, we hope to find the balance of turf health and a
positive financial impact, allowing a win-win for all. We are very
excited for the season and hope you get a chance to enjoy the golf
course! Thanks for reading.
-Travis Williams
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