public static double
genuk(double psi, double m, double n, double alpha);
Calculates conductivity from water potential
returns conductivity
public static double
genup(double ts, double ta, double tr, double m, double
n, double alpha);
Calculates water pressure from water content
returns water pressure
public static double
genuth(double ts, double psia, double tr, double m,
double n, double alpha);
Calculates water content from water pressure potential
returns water content