"Sean Houtman" wrote in message
...
On Tue, 14 Dec 2010 12:55:03 +1100, "Peter Jason"
wrote:
I use glass petri dishes which I fill with sifted soil.
This assembly is put into the microwave and zapped for 2
min on high to kill spores, other seeds, and bugs.


When cool I moisten the result and insert the seeds.


Is this OK? When I put the lid on the petri dish to
retard moisture loss, and make them stackable, should I
worry about oxygen lockout?

I don't see any significant problem with that setup,
except for some seeds that may need darkness to germinate.

Sean


I plant the seeds about 5mm beneath the surface, so they're
in the dark. The cover of the petri dish sure retards
drying out.