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Benefits of
Aeration
Once the stresses of summer have wreaked havoc on
your lawn and the moderate temperatures of early fall set in, it is time to
repair the damage that has been done. On clay- or silt-type soils, or any soil
type for that matter, soil sealing and compacting can seriously impair turf
growth. Grass roots are injured because air, water and fertilizers cannot reach
them in sufficient quantities. Mechanical core aeration, which breaks through
this barrier, is essential for continued turf health. Fertilizer applications
following aeration most efficiently provide nutrients to the turf roots. We
apply an 18-24-12 fertilizer which hastens germination and promotes rapid root
development. Also, after aeration, the plugs which are left behind assist in
breaking down thatch.
Aeration is best done by power equipment that
pulls out small cores of soil every 3 to 4 inches. Unlike other companies, we
double aerate all turf areas. This maximizes the number of holes created,
allowing twice as much seed to germinate and twice as much fertilizer to get to
the root zone. We use the highest quality turf type tall fescue blend. This
blend has a 99 percent germination rate, when irrigated properly.
Aeration should be done at least once a year. We believe that spring
aeration creates a prime environment for weed germination. Therefore, early
fall is the best time for all cool season grasses. The earlier these steps are
taken, the more time the grass has to mature and root in before winter arrives.
This in turn will make for a better spring turf.
Large bare spots in
the yard need special attention and are not included in the standard aeration
price. Depending on size, the areas need to be renovated or hand scratched and
seeded.
If you have an invisible dog fence and/or an irrigation system
we will work with you to get them marked before aeration begins. We look
forward to making your lawn the most attractive in the neighborhood.
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| Shallow, frequent sprinkling to add a little water each
day is the worst way to water a lawn. It only encourages shallow, weak roots,
crabgrass and disease development. Before sunrise, irrigate to full depth of
the root system. Then wait until the supply is nearly exhausted before watering
again. But, do not let the grass undergo drought stress. The key here is
duration, not frequency. It is better to irrigate for longer periods of time
and less frequently than vice-versa. |
| Bluegrass and red fescue roots may not reach depths
greater than 4 to 6 inches during the summer. About one inch of water (620
gallons per 1,000 square feet) can be stored in an average Missouri soil to
this depth, and this should last about a week. A reasonable rule for summer
lawn irrigation is to apply enough water in addition to natural rainfall to
total one inch per week. On sandy soils that cannot store this much, greater
frequency with lesser amounts may be required. During the heat of summer, it
may be necessary to irrigate an extra day, to compensate for the lack of
rainfall and extreme heat. |
| Don't guess at how much water must be applied to reach
desirable wetting depth. Place tall, straight-sided cans in the sprinkler
pattern. Measure water depth in the cans when the root zone is thoroughly
wetted, that is, when puddles and runoff begin to form. Thrust a small probe
(screwdriver) into the soil. Decreased resistance to the probe in wetted soil
can help gauge depth of wetting. |
| Most sprinklers apply water faster than soil can absorb
it. Few established lawn soils in Missouri can absorb 1/2 inch per hour; many
absorb much less. To prevent waste, move sprinklers frequently. Properly
engineered permanent irrigation systems with timing controls for "interval
watering" do the best job. A soaker hose is also an excellent choice.
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| Steep slopes, hard spots and hot areas require special
attention. Mechanical aeration, extra slow watering and use of wetting agents
may help water infiltration |
Keep these things in mind and it will help you minimize the
damage a St. Louis summer can do to your lawn. |
| Why not mulch my leaves with the
mower? |
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| We believe that the potential harm you can cause to your lawn by
repeatedly cutting over leaves outweighs the potential benefits of leaving the
organic matter on the turf. Sure, you are leaving an all natural substance on
the lawn, which, at some point could benefit the lawn, but too much of anything
is not good. As the chopped up leaf particles build up, they can actually
smother the grass. This causes the turf to thin out, opening the door for
weeds. The leaf matter does not break down fast enough to provide an immediate
benefit to the lawn. For these reasons, we believe the leaves should be cleaned
before any fall cuttings. |
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