Tracmaster's BCS 740 two-wheel tractor fitted with a stone- burying attachment does a great job of cultivating the soil, and in a single pass will leave the ground ready for planting or sowing. Are such implements available for large, field-scale use?
Estate manager, Hampshire
A: Stone-burying implements can certainly do a first-class job preparing a tilth ready for sowing or planting.
Fitted to a two-wheel tractor such as the BCS 740, the attachment is ideal for working in many situations and, because it is a one-pass operation, will quickly cultivate soil for nursery or garden beds, borders and allotments.
Most stone buriers work by using rotary tines to dig and lift the soil, weeds and other debris. The material is then thrown against a line of metal rods or fingers.
The debris and stones fall straight back into the trench dug by the tines, while the soil passes through the comb-like rods and drops on top of the debris - effectively burying it.
A following roller levels and firms the soil.
Larger-scale stone-burying, or soil-renovation, implements are available.
Two I have tested are the Rotodairon from The Grass Group and Blec's Multivator.
The Rotodairon is offered in five working widths from 1m, requiring a tractor of 18hp to 35hp, up to the 2m model, needing a tractor of 55hp to 80hp.
Blec's Multivator also comes in five widths, starting at 1.5m and extending up to the massive 2.3m model.
Tractor requirements start at 35hp for the 1.5m model and rise to 100-150hp for the largest unit. Various attachments are available, including a seeder unit, so cultivation and seeding of lawns, for example, can be achieved in a single pass.
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Sally Drury has been reporting on product developments and testing kit for 29 years. The advice given in this helpline is independent.