107. Figure 6: Visual Scoring of the Presence of a Cultivation Pan Under Arable cropping
Good Condition
VS=2
Moderate Condition
VS=1
Poor Condition
VS=0
No tillage pan, with
a friable, clearly
apparent structure
and soil pores
throughout the
topsoil.
Firm, moderately
developed tillage
pan in the lower
topsoil, showing
clear zones of
compaction, but
including areas with
weakly developed
structure, cracks,
fissures and a few
micro-pores.
Very firm to hard,
well developed
tillage pan in the
lower topsoil,
showing severe
compaction with no
structure, no
macro-pores and
few or no cracks.
107