the organic amendments addition increased cellulase and ureases activity of soil, but no significant differences were observed between hydrated lime-treated and control soils.
this increase was higher in compost treated soils, where values three-, two- and ten-fold those in control soils, respectively, were found.
however, the amendments effect on acid phosphatase was different: compost, pig slurry and hydrate lime addition led to a reduction of this enzymatic activity compared with control soil, reaching values almost twofold lower