Minnesota Lawn and Landscape

Information may not be reliable

DID YOU KNOW?

Spring is the Best Time to AERATE!

What is lawn aeration?Lawn aeration is the process of creating air channels in your lawn so that air can freelypass into the soil and circulate around the grassroots. This aeration is achieved by either a) removing small cylinder shaped cores about 0.5cm wide and 5-10cm deep (similar to the idea of coring an apple) , this is known as core aeration. b) creating aeration channels by inserting solid spikes (such as the tines of a garden fork) into the soil. This form of aeration can give rise to soil compaction and so
Why do we need to aerate the lawn?Over time the soil that the lawn grows on can become compacted due to a number of reasons such as use for sports, walking, vehicles, parking and children playing. This soil compaction can have a negative effect on your lawn. The damage to your lawn from soil compaction results from the pore spaces within the soil becoming smaller and thisleads to both a reduced amount of air held in the soil, restricted air flow and reduced water infiltration into the soil. These results of soil compaction are damaging to a lawns health. Reduced air levels and restricted air circulation in the soil means that the grass roots are less able to take up oxygen. Reduced soil pore space also leads reduced levels of nutrient uptake from the soil. Oxygen is a vital input into a plants growth cycle. If the ability of water to infiltrate the soil is limited by soil compaction then the water will not infiltrate as deeply into the soil as normal, this means the lawns roots will not develop as deeply and so the lawn will be more at risk from drought and other environmental stresses. Soil compaction also means there is greater resistance against the roots as they try to develop to greater depths. Poor development of roots below the soil will result in apoor lawn condition above the soil.
Lawn aeration has a number of benefits including:The increased water, oxygen and nutrient uptake by the grass roots Improved development of roots to greater soil depths Enhancing water infiltration into the soil and to greater depths Encouraging the breakdown and decomposition of thatch by soil microorganisms Helps prevent the loss of valuable fertilizers due to run off from compacted areas