This is supported by the fact that an increase of the biomass of
bacteria resulted not from their higher number, but from
the enlargement of average size of cells, which is in close
relation with the level of easily available food in the environment.
A relatively limited response of bacterial communities
to the enrichment of the medium with compost
may also be associated with competitive relationships between
these organisms and fungi. These suggestions are
in agreement with Leaµa, who found that enrichment
of greenhouse medium for geranium culture with composted
pig slurry stimulates a little more the development
of fungal than bacterial biomass. noted a rapid increase of microbial biomass
and CO2 emission in the soil fertilized directly with pig slurry. Our
observations indicate that the addition of previously composted
pig slurry to the greenhouse medium may lead to
a considerably slower bacterial degradation of organic
material contained in it.