Water logged patch?

I have now cleared the majority of my new patch only to find that there is a small area half way down the plot that gets water logged. It is only a small strip that logs and the rest is pretty well drained. Can anyone recommend any ways to improve the drainage of this one patch.
If not can anyone suggest what may grow in this area other that rice. It isn't water logged all the time.

Thanks

watercress?

If you do what muntjac suggested first, and then plant some dwarf stock fruit trees near the wet area, they should suck up a lot of the moisture, you might find that you can remove the drain eventually.

Perhaps just leave it as a ditch for the winter / spring and then fill it in if the ground seems to be drying.

Of course this depends on what shade they might cast.

And also this is something I'm trying but haven't tried before. Might not be successful at all.

see my plot