R help - Sep 2012 - split plot experiment with a repeated measure

Hello,

I would like advice on if and how I might viably analyse this dataset: The
experiment has 3 blocks with a three level main plot treatment, split to a two
level treatment. In this case most parameters are also measured repeatedly at
1-3 monthly intervals. Ideally I would like to test the full
response~treatment_1*treatment_2*sample_time model, but don't know what the
structure should be, or even whether this is a viable analysis. I should
probably add that neither the main or sub plots are randomised.

Thanks

Mike Palmer