To pot on, or not to pot on?

[NoTWHaTiTWaSNT]

Hi Guys,
First time I've done asparagus, this one is 3 inches tall and I'm wondering if I should take out of the tray that is covered with a plastic bag and pot on?

http://www.growfruitandveg.co.uk/gra...paragus-02.jpg

On a side note, I sowed this tray April 26th and only 2 have come up so far, any ideas anyone??

TIA

[roitelet]

Take the plastic bag off and let the baby acclimitise it's self to the big bad world and then when it is a bit bigger pot on into a small pot.

[NoTWHaTiTWaSNT]

Take the plastic bag off and let the baby acclimitise it's self to the big bad world and then when it is a bit bigger pot on into a small pot.

How will taking the bag off affect the other seeds that have not germinated?