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Topsoil and growth layer — thickness, quality and tolerances

NfA's 25–40 cm, dry bulk density, texture and pH

2026-06-14·9 min reading

The topsoil layer is the growth base for plants. NfA 1992 specifies 25–40 cm of topsoil, requirements for dry bulk density and tolerances. Here is how to assess thickness, quality and compaction.

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