Howdy,

I am working on the Diatom algae BarrReport Newsletter as well speak, I'd hoped to have the fertilizer test done, but we are missing some reagents for the N and P test at the lab

So by the time they come in, it'll be mid June.

I have harvested the ADA soils comparison test plants. The plants are being dried and will be weighed on Weds and Thurs.

I have raised 4 stems per pot of Myriophyllum spicatum (Eurasian milfoil) in a continuous flow through system for 4 weeks is several soil sediment types.
I used 5 replicates so a total of 4 stems x 5 pots per soil type.

1.ADA Aqua soil amazonia
2. Delta soil
3. Tahoe Soil
4. Soil Master Select
5. Sand and garden soil at the 3:1 mix

Pot size: 1 liter/20cm depth

Just looking at things so far, the SMS appeared to do the best. I did not expect nor predicted that, but I have not weighed things yet. Delta soil did well, better than sand:garden soil and better than the Tahoe soil. ADA did something in the middle. There was not that much variation between the visual growth.

Around the latter half of June, I should be getting the Trace mixes.
These will be cool.

I'll let folks know officially on that.

Regards,
Tom Barr