Soil Compaction
Soil Compaction
Treatment and Symptoms of Soil Compaction in Lawn Turf
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Soil Compaction Problems in your Lawn

When soil is crushed from the top, by continually walking on it, or by heavy machinery, the air gaps are squeezed out, resulting in the elimination of soil pore space. Healthy soil should contain around 50% pore space. The pore space is essential in transporting oxygen, water and nutrients to the lawn turf and and dependent insect, plant and animal life. A pore space reduction of even 10% will put your garden turf under stress.

Symptoms of Soil Compaction

The grass grows very slowly, thinning out and allowing the growth of algae, moss and other weeds. Soil compaction also leads to poor drainage. during heavy rain, water may 'puddle' on the surface, draining away very slowly. Where the turf has been subjected to continuous loads, for example car parking, the compaction can go down as deep as half a metre.

Needless to say, the lawn turf is more vulnerable to compaction when it is wet, with clay soils compacting more than sandy soils.

Treatment for Soil Compaction

The normal treatment for a compacted lawn is aeration - see the video below. In severe cases, the soil will need to be dug over or rotovated and the turf laid again..

The benefits of Aerating your garden lawn - YouTube Video

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