A procedure for physical characterization of soil as related to crop growth and farming techniques
1998
Canarache, A. (Institutul de Cercetari pentru Pedologie si Agrochimie, Bucuresti (Romania))
Several characteristic curves are defined: the classical water retention and hydraulic conductivity ones, but also those describing variation with moisture content of resistance to penetration, air content, specific resistance to ploughing and bearing capacity. The set of these curves is represented in a combined graph. Limiting values for crop growth and/or for farming techniques of each of the physical properties are shown in this graph and in a table. To correlate this procedure with climati-water resources, it is combined with a preliminary way of representing the extreme soil moisture content of a specific soil and environment. The range of favourable (non limiting) moisture content may be considered as a measure of the quality of a specific soil from the soil physics point to view. The kind of limitation (first effective) may offer information on causes of low quality and on ways to deal with them.
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