Building soil biomass under intensive sportsturf management

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Transcript Building soil biomass under intensive sportsturf management

Development of soil biomass in turf at
ANZ Stadium Sydney January 2008 through June 2009
The biological balance of soils is critical
to their performance in terms of the
suppression of disease, reduction in
thatch and black layer, development of
soil Carbon levels and CEC, as well as
maintaining soil Oxygen levels.
Biomass development January 08 to June 09 ANZ Stadium Sydney
250
245
% of Target Level
200
181
The ideal balance between fungi and
bacteria in turfs soils is an even split.
170
158
150
100
94
100
100
100
100
50
4 29
32
0
Active Bacterial
Biomass
Total Bacterial
Biomass
Jan-08
Active Fungal Biomass Total Fungal Biomass
Jun-09
However in the vast majority of the turf
soils we have tested over 6 – 7 year
period there has been a strong general
trend for beneficial fungi to be grossly
deficient.
Target
This trend was also evident at ANZ
Stadium but has been gradually
Improved through a regular program of
Soil & Plant Tonic and BioGrow, as
well as occasional applications of
OziVerm and GranoVerm