However, from the agricultural point of view the soil water from -10 to -1500kPa is the most important because it covers the 2 limits of plant-available water in soil, the field capacity (-33kPa) and wilting point (-1500 kPa).
Field capacity and wilting points are relatively static in nature and denote only the end points of the soil water characteristic curve over the range of which soil water is available to plants.
s] values (on the horizontal axis) and their corresponding matric heads at the permanent wilting point (on the linear, vertical axis).
Robertson LS, Kohnke H (1946) The pF at the wilting point of several Indiana soils.
Significant differences were found mainly for clay content, bulk density, field capacity, wilting point, macroporosity, and readily available water.
3]) Field capacity FC Water content at -10 kPa (%) Wilting point WP Water content at -1500 kPa (%) Macroporosity MP Soil volume drained from 0 to -5 kPa (%) Total available water TAW Water drained hetween -10 and -1500 kPa (%) Readily available RAW Water drained between -10 and water -100 kPa (%) Saturated hydraulic [K.
Ey, Eyre; Te, Templeton; Wk, Wakanui; Tm, Temuka; TP, total porosity; MP, macroporosity; RAW, readily available water; TAW, total available water; FC, field capacity; WP, wilting point
Wilting point in topsoils and B1 horizons differed between Eyre and Templeton series and total porosity in B2 horizons differed between Eyre and Templeton.
Values in italics represent water content where the lower limit of LLWR is determined by soil strength rather than wilting point
However, in the coarse pumice soil, medium compaction increased the LLWR slightly because the increase in water content at field capacity was greater than that at wilting point, da Silva et al.
3]) at field capacity (FC) and wilting point (PWP), and available water capacity (AWC) for soil samples from low activity clay (LAC) (l) and non-LAC (nl) soils
3]) at wilting point (PWP) for soil samples from low activity clay (LAC) (1) and non-LAC (nl) soils grouped by particle size classes