Recent Soils [R]
The highest recorded carrot production in the world was from a Recent Soil on the Taieri Plain.
Recent Soils are weakly developed, showing limited signs of soil-forming processes. A distinct topsoil is present but a B horizon is either absent or only weakly expressed.
Recent soils occur throughout New Zealand on young land surfaces, including alluvial floodplains, unstable steep slopes, and slopes mantled by young volcanic ash. Their age varies depending on the environment and soil materials, but most are less than 1000 to 2000 years old. They cover 6% of New Zealand.
The soils have variable soil texture, with common stratification of contrasting materials, and spatial variability is high. They are generally deep rooting and have high plant-available water capacity.
Natural fertility is usually high with high base saturation. The clay mineralogy is usually dominated by illite.
A continuous cover of vascular plants is normally well established.
Soil orders are divided into soil groups based on variation in factors such as drainage status, parent material, chemical and physical properties