Deep soil profile sampling

For a more detailed picture, the deep soil profile page lets you record samples at three depth layers — topsoil, mid-depth, and subsoil. Each layer tracks nitrogen, phosphorus, potassium, and pH independently.

Mark your GPS sample points on the map so you can return to the same spots next season. This depth-level data helps you understand nutrient distribution below the surface and can reveal compaction or leaching issues that topsoil tests alone would miss.