We had a gym and cookery/domestic science room, playground for netball, garden where we grew potatoes, double digging
trenches and compost called sewage sludge, although it was warm to the touch.
Prepare the site at least a month before planting, double digging
to aerate the soil and create a 1m (3ft) square plot where each planting is to take place.
is more labour intensive but it's traditionally seen as doing a better job, digging down two spades depth and laying a trench of manure before replacing a spade's depth of soil on top of that.
This also exposes the subsoil, usually lighter in colour, and often releasing useful nutrients when brought into cultivation by double digging
Farmers use a subsoiler to break it up and serious gardeners use double digging
, where two spade depths are turned over separately, taking care not to mix subsoil with topsoil.
Mike, a retired civil servant, gave his allotment a good double digging
when he first started.
The process is popularly referred to as double digging
since the top 12 inches of soil are removed with a spade (the first dig) and then replaced with soil from an adjacent trench (the second or double dig).
Fellows were trained in all aspects of Bio-Intensive Agriculture (BIA), including composting, plant spacing, companion planting, planning, pest control, and double digging
, a two-tiered soil preparation technique.
Try double digging
to break up the subsoil and aerate the top soil.
Calories Burned During Gardening Activities Calories Burned Activity Per 30 Minutes Watering lawn or garden 61 Mowing lawn, riding a power mower 101 Trimming shrubs with power tools 142 Raking 162 Bagging leaves 162 Planting seedlings 162 Mowing lawn, pushing a power mower 182 Planting trees 182 Trimming shrubs with a manual tool 182 Weeding 182 Clearing land 202 Digging, spading, tilling 202 Laying sod 202 Chopping wood 243 Gardening with heavy power tools 243 Mowing lawn with a push mower 243 Double digging
344 Chart courtesy of National Gardening Magazine
Under the deep bed method soil remains in its current layers and you do not have the less fertile subsoil being moved to the surface by digging while the more fertile surface soil can end up a foot or more deep with double digging
or bastard trenching.
The old head gardeners of stately homes would have insisted to their bosses that double digging
was an essential winter process employing many staff.