Seems like I have accidentally made some right decisions this winter..... Last autumn I had decided to cover several areas of 3 plots with cardboard, and cover that with the free woodchip that tree surgeons dump at our site gate. I held fire until there had been enough rain to thoroughly moisten the dry ground, then did several rounds of local bike shops, to collect their cardboard boxes. (Small independent bike shops are glad to give it to you, as they would have to pay to have it collected otherwise; but bigger chains like Cycle King want to charge you £3 a box, as they have a central disposal system). I had some larks handling the big boxes in strong winds, especially getting it into the back of my car on a main road, but eventually got a total of 5 large-ish areas thoroughly covered, and weighed-down with some of the many rusting metal poles that have been on my plots since I took them over a quarter of a century ago. In no time at all all the cardboard was soaking wet, and at no risk of blowing away! Then, over a period of 3 months or so, when it was impossible to do almost anything else at the allotments because of the weather, it was barrowing the woodchip the 100 metres or so from outside the site gates to various spots on my plots. Until, Bingo! - this weekend just gone I bumped into a tree surgeon just arriving to dump another load of chippings, and slipped him a fiver to go on into the site a dump it straight onto the last cardboard area at the front of a plot.....(I'd been fantasisng about this happening all winter).
The plan is, as the growing season goes on, to plant strong seedlings grown at home straight through the woodchip and cardboard, hoping that there will be less weeding to do - I'm very bad at it, and howl in frustration when I accidentally hoe out a carefully grown favourite vegetable! I might also water with liquid manure.
This is a method not unlike the American 'Back to Eden' system, with the unexpected bonus of being able to set it up during the kind of wet winter we've been experiencing. Even on our site in Oxford there are some waterlogged areas, where I couldn't have been doing this, so I've been lucky - though in part this may be because I've been cultivating these plots for so long, adding manure, compost, green manure, etc...
If all goes well I plan to replenish these areas with more woodchip over next winter, and plant through again with strong young plants, on a rotation system