I've just completed a fairly extensive sediment growth comparison test
using milfoil as a study plant.
The results are a little surprising.
ADA Aqua soil
Rich clay black Delta Sediment
Tahoe sandy soil
Soil Master Select(old Turface)
Sand + garden soil(3:1)
Plain sand
I did two main treatments: flow through with no water column fert
additions and the other with 3x a week NO3/K/PO4/Traces
The tap water source was the same as was the light and both have
continuous flu****ng(so no interaction from sediment leaching could
occur). The water column ferts where dosed at high concentrations and
allowed to bath the plants for about 1 hour.
Regards,
Tom Barr
