Fig. 1. X-ray diffractograms (Co K, values of reflection in nm) of the grounded <2-mm fraction: tilled topsoil (Ap horizon), 25- to 35-cm subsoil (E horizon), and 40- to 50-cm subsoil (Bt horizon).
, values of reflection in nm) of the grounded <2-mm fraction: tilled topsoil (Ap horizon), 25- to 35-cm subsoil (E horizon), and 40- to 50-cm subsoil (Bt horizon).