% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/diagnostics-rsg-tier2.R
\name{ferralsol}
\alias{ferralsol}
\title{Ferralsol RSG gate (WRB 2022 Ch 4, p 110)}
\usage{
ferralsol(pedon)
}
\arguments{
\item{pedon}{A \code{\link{PedonRecord}}.}
}
\description{
WRB-canonical: ferralic horizon \\<= 150 cm AND no argic horizon
starting above (or at the upper limit of) the ferralic, UNLESS the
argic in its upper 30 cm or throughout has one or more of:
\itemize{
  \item < 10\% water-dispersible clay; OR
  \item DeltapH (pH_KCl - pH_water) \\>= 0; OR
  \item \\>= 1.4\% soil organic carbon.
}
v0.3.4 enforces all three exception paths. The DeltapH check uses
\code{ph_kcl} and \code{ph_h2o}; the WDC check uses
\code{water_dispersible_clay_pct} (introduced in v0.3.3 schema).
}
