ORIGINAL RESEARCH
Changes in Some Biological and Chemical
Properties of an Arable Soil Treated with the
Microbial Biofertilizer UGmax
Anna Piotrowska1, Jacek Długosz2, Ryszard Zamorski1, Piotr Bogdanowicz3
1Department of Biochemistry, Faculty of Agriculture, University of Technology and Life Sciences,
Bernardyńska 6, 85-029 Bydgoszcz, Poland
2Department of Soil Science and Soil Protection, University of Technology and Life Sciences,
Bernardyńska 6, 85-029 Bydgoszcz, Poland
3Bogdan Trade-Service Company, Ltd., Bolesławowo, Poland
Bernardyńska 6, 85-029 Bydgoszcz, Poland
2Department of Soil Science and Soil Protection, University of Technology and Life Sciences,
Bernardyńska 6, 85-029 Bydgoszcz, Poland
3Bogdan Trade-Service Company, Ltd., Bolesławowo, Poland
Pol. J. Environ. Stud. 2012;21(2):455–463
KEYWORDS
ABSTRACT
The aim of this study was to determine the effects of the commercial biofertilizer UGmax on soil cellulase
(CEL) and dehydrogenase (DH) activities, microbial biomass carbon content (MB-C), and some chemical
properties in the humus horizon of an arable field (Luvisols) over a three-year period (2005, 2006, 2008)
for winter wheat and for winter rapeseed in 2007. Twenty soil samples were taken from the area studied in
2005 (the control year without UGmax treatment), while in the other years ten soil samples were taken after
UGmax treatment and ten from the control, always after plants were harvested. No clear effects of UGmax
treatment on the studied properties were found. Compared to the control, the application of UGmax increased
soil reaction and soil organic carbon (CORG) concentrations in the entire study period, although for the latter
property the changes were not statistically significant in 2007. A significant reduction of CEL activity was
noted after the second and third years of UGmax application, while DH activity was significantly higher when
UGmax was applied compared to the control only after the first year of treatment.
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