|
|
vol. 3, nr. 3 (2004)
|
Respiration activity and dehydrogenase activity and number of proteolytic microorganisms in soil contaminated with sulphur and amended with sewage sludge
|
|
|
Stefania Jezierska-Tys
|
|
| (get PDF )
|
|
|
Department of Agricultural Microbiology, University of Agriculture, ul. Leszczyńskiego 7, 20-069 Lublin |
|
|
vol. 3 (2004), nr. 3,
pp. 501-508
|
|
|
abstract:
Studies were carried out in a model experiment on lessive soil developed from heavy loamy sand. The aim of the studies was to investigate the effect of 500 kg SO2 ha-1 year-1 on the number of proteolytic bacteria and fungi as well as the respiratory and dehydrogenase activity in lessive soil amended with sewage sludge (20 t ha-1 year-1). The studies revealed that sulphating applied along with soil amendment using sewage sludge, as well as the application of sewage sludge alone, stimulated the proteolytic bacteria number. Only acid rainfall dose had a significant inhibitive impact on the number of proteolytic fungi. The respiratory activity of lessive soil did not show any differences between the objects studied. The dehydrogenase activity of the soil combinations studied differed significantly from the control soil.
|
|
keywords:
acid rain, municipal sewage sludge, proteolytic bacteria, proteolytic fungi, respiration activity, dehydrogenase
|
|
original in:
Polish
|
|
|
|
|
|
