Posted: 02/09/2016 at 14:01
Agree - compost the manure so that it rots down well.
And I'm afraid you're going to have to dig out those weeds - do not rotovate them however much of a time-saver it may seem. All it will do is chop up the roots of the perennial weeds, and each little bit of root will grow into a new weed.
Dig over with a fork, picking out every single weed and piece of root, and get rid of them. The old way on allotments was to pile them up, let them dry out and then have a slow burning bonfire - but some sites don't allow this any more.
Don't try to dig when the soil is wet and claggy and sticks to your boots - you'll only 'break your back' and ruin the structure of your soil.
I know it's hard work, but think of what you're saving on gym membership