Soil pH ranged between 4.10 and 7.6, where 4.10
and 4.27 (USS and FPW) didn’t differ of pH of
control (blank soil) with FBC and without FBC
ranged between 4.30 and 6.44, where 4.30 (FPW)
didn’t differ of pH of control (Table 3). However,
when the results of both blank soil pH were
compared, no significant difference was observed
with FCB, as reported by Zydlik and Zydlik (2008).