A sandy soil at Paruna in the South Australian Mallee. Mildly non wetting. Good organic matter accumulation and surface layer root distribution in a low fertility sandy soil. The very rapid change in pH in the soil profile has determined largely the depth to which the cereal roots shown are prepared to go to. The onion planter “furrow infiltration tubes” prove invaluable in determining the field water harvesting capacity of different soil types. It is remarkable how layers of sand can impede water movement under certain conditions and with particular management practices. The crops grown are an absolute credit to this farmer in this soil type. Soils are now at “front and centre” for precision agriculture.