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areation servicesLawn Aeration Services

What are the benefits of aeration?
Core aeration helps the lawn's health and vigor, and it reduces maintenance requirements through these means:

  • Improved air exchange between the soil and atmosphere.
  • Enhanced soil water uptake.
  • Improved fertilizer uptake and use.
  • Reduced water runoff and puddling.
  • Improved turf grass rooting. Reduced soil compaction.
  • Enhanced heat and drought stress tolerance.
  • Improved resiliency and cushioning.
  • Enhanced thatch breakdown.

Equipment affects the outcome
The type of aeration equipment can determine how effective the treatment will be. in general, turf responds best when core holes are close and deep. Equipment with hollow tines removes soil cores. Equipment with open tines divots the soil surface. Aeration equipment varies in tine size up to 3/4 inch and in depth of penetration up to 4 inches, depending on the manufacturer's specifications.

Why is aeration necessary?
In most home lawns, fertile topsoil may have been removed or buried during excavation of the basement or footings, forcing grass to grow in subsoil that is more compact, higher in clay content and less likely to sustain a healthy lawn.

Walking playing and mowing will compact soil and stress lawns. Raindrops and irrigation further compact the soil, reducing large air spaces where roots may readily grow. Compaction is greater on heavy clay soils than on sandy soil, and it is greatest in the upper 1 to 1 - 1/2 inches of soil.

Aeration can help relive soil compaction, allowing your grass to grow deeper roots and make better use of water and fertilizer.

aeration

Relieve Thatch Accumulation
Most home lawns are subject to thatch accumulation. left unmanaged, it impedes water, fertilizer and pesticide effectiveness. Core aeration combines soil with the thatched debris, so soil organisms are better able to break down the thatch and reduce its accumulation.

How Often Should Lawns Be Aerated?
Most lawns benefit from annual aeration. Heavily used lawns, or those growing on heavy clay or subsoil's may need more than one aeration each year. Again, turf responds best when the tine spacing is closer and penetration is deeper.

When is the Best Time to Aerate?
If you have cool season turfgrass such as Kentucky bluegrass and perennial ryegrass, both spring and fall are ideal times to aerate. In spring, aerate between March and May. Perform fall aeration between August and November. Aeration before or at the time of late season fertilization enhances root growth responses and improves spring greenup and growth.

Warm season turfgrasses such as zoysiagrass and bermuda grass should be aerated mid spring to summer. Avoid aerating when warm season grasses are dormant – it may encourage weed competition. In addition, avoid aerating warm season grasses during spring greenup and not until after their first spring mowing.

It is best to aerate before you apply preemergence herbicides, rather than after. Aerating after a herbicide application can reduce the chemical barrier formed by the herbicide, allowing weeds to germinate. Applying fertilizer after the aeration helps the lawn compete against weeds. Water the lawn after aeration, particularly in the areas where drought and high temperatures are common.

aerate

What can you expect?
aeration servicesImmediately after aeration, your lawn will be dotted with small plugs pulled from the soil. Within a week or two, these small plugs of thatch and soil break apart and disappear into the lawn.

About 7 to 10 days after aeration, the aerification holes will be filled with white, actively growing roots – a sign that the turfgrass is receiving additional oxygen, moisture and nutrients in the soil from the soil.

On compacted soils and on lawns with slopes, you should see an immediate difference in water puddling and runoff after irrigation or rainfall. After aeration, your lawn should be able to go longer between watering's, without showing signs of wilt. With repeat aeration's over time, your lawn will show enhanced heat and drought stress tolerance.

Remember, most lawns benefit from annual aeration. And while you shouldn't expect miracles, especially with poor soil, lawns that receive this care will be healthier, more vigorous, easier to maintain and have fewer pest problems.

Useful Definitions
COMPACTION: A condition that occurs primarily in the upper 1 to 1-1/2 inches of soil. Compacted soils have reduced air spaces and more resistance to root growth than noncompacted soils. Compacted soils are dense and cause water to puddle and run off.

CORE AERATION: The mechanical removal of small cores of soil and thatch from the lawn.

DETHATCHING: The process of removing the thatch layer from turf. This process is usually done mechanically with a dethatching unit or power rake.

POWER RAKE: Turf equipment that mechanically removes thatch with rigid wire tines or steel blades, which slice through the turf and lift the thatch debris to the surface for removal.

THATCH: The layer of dead and decaying plant tissue located between the soil surface and the green vegetation. A thin layer of thatch is beneficial because it reduces soil compaction and it increases wear tolerance. However, a thatch layer of 1/2 inch or more prevents air, light and water from reaching the turf's root zone. Thatch also makes an excellent breeding ground for harmful insects and disease organisms.

Technical credit: This brochure was written by Dr. Robert Shearman, turfgrass professor at the University of Nebraska, Lincoln, NE.

Contact Top Turf today at 612-685-6561 or schedule a FREE Lawn Evaluation.

Top Turf • P.O. Box 160 • Long Lake, MN 55356 • Tel: 612-685-6561 • Email: info@topturfmn.com