Polytunnel Planted Up (nearly)

This year I'm trying to go for lower effort in the veg garden. I want a year to get on top of the weeds, they're really taking hold in some beds and having imported bindweed (unwittingly) I need to do something to stop their advance. So I've sheeted over a few outside beds and will sow some green manure on others. I'll still grow loads of beans, peas, sweet corn and squash, but might not go to my usual levels this year. The same is true in the polytunnel. Last year I enjoyed having loads of different crops in there, but we've gone for easy productivity this year. I've covered the beds in black plastic, to keep the weeds at bay and to help retain moisture. The plastic in the rest of my garden has been in use for years now and is still looking good. I didn't buy any more in, just used what I have. I've gone for just a few crops in there, all with similar spacings. Tomatoes down both sides, 51 plants in total, then some melons, about 16 cucumber/gherki...