Penetrometer – professional compaction meter.
The imants® penetrometer is a compaction meter. Its purpose is to locate
compaction in soil / turf / growing medium so that the right measurements can be taken to
eliminate the compaction. As a rule of thumb compaction greater than
20 bar (285 psi) need to be avoided since the roots have great difficulty
to penetrate the soil. Lack of air is a great problem as well since Roots
need oxygen to get nutrients available to the plants. The penetrometer
helps you to monitor your rootzone.