what we did this year was to spray both plots with Roundup because there where weeds of plenty then after around 3 weeks the weeds where dying off so Roundup had done its job so on that plot I spread loads of well rotted horse manure I'm going to plough that plot in around 2-3 weeks time before winter sets in
the second plot has had no manure on it at all but the ground is bare not a weed insight so that to will be also ploughed at the same time as the other because I'm planting potatoes on that plot next year its no manure this year maybe manure it next year or sow green manure after the potato crop depends on the supply of horse manure