Posted: 24/01/2016 at 10:12
Dig out perennial roots. Hoe germinating annuals. Dig out as much mare's tail as you can. Liming the land for brassicas can help deter mare's tail but you'll never get rid of it. However, the continual cultivation of allotments help prevent it being too much of a nuisance (so I'm told) - it's much more of a problem in flower beds and permanent planting such as asparagus and fruit beds.
I don't like covering the soil with plastic or carpet etc. I believe it sours the soil, provides idyllic conditions for slugs to breed and perennial weeds continue to grow underneath it - I much prefer to dig it over and let the weather and birds get at it.
Don't forget - the allotment rent is cheaper than a gym membership!