The EM survey assists with the strategic placement of soil sample sites. The sites selection is based on statistically significant different soil types (zones). Samples are then chemically (EC, CEC, Boron, Sodium, etc) and physically (Gravel, Sand, Clay and Silt) analysed at three different depths:
With some ‘ground truthing’ the EM with the additional information gained from the soil cores can be used to identify variability of soils within a paddock or farm. Plans can then by created to manage the variability that exists across the paddock,and management zones created.