The result was a couple of boxes full of oat sheaves (as pictured). The oats are hanging upside down for the moment and in a couple of weeks when my exams are over, I'll set about threshing them to extract the grain. Not quite sure how as yet, but it should be good post-exam therapy.
After the harvest, I dug over the patch, putting the residue of the stalks onto the potato patch in the next bed - instant mulch! Interestingly, the roots on the oat stalks were only about 4cm (1.5") long (maximum), so oats are obviously very shallow rooted. The soil in the bed where the oats grew was quite fine and looked somewhat depleted, so I dug in some cow manure.
The patch now has some "seedless" watermelon seeds in it. We saved them from a watermelon we purchased and they were plump and brown, so looked to be fertile. Does anyone know whether these will grow? I thought I'd give them a couple of weeks and if they don't sprout, I'll plant something else there - maybe some other watermelon seeds.
love and light
naturewitch