Subsoil
In agriculture and horticulture, deep loosening is the mechanical breaking up of compacted layers in the subsoil from a depth of approx. 30 cm , which impede root growth and possibly also water-retaining layers . The cause of subsoil compaction can, for example, be plow soles , curbs or previous construction work using heavy machinery. For deep loosening, special cultivator-like single and multi-tine implements with rigid or movable loosening shares driven by the tractor's PTO shaft are used; When compacting the plow, however, it is sometimes sufficient to use a particularly stable heavy cultivator . The common working depths of 60 to 90 cm require the tractor to generate significant tractive effort . In order to achieve a thorough break-up (loosening) of the sub-floor, the floor should be as dry as possible and thus only slightly plastically deformable. In order to stabilize the loosened soil , deep loosening is often combined with amelioration liming.
swell
- Ulrich Sachweh (editor): The gardener, volume 3, tree nursery, fruit growing, seed growing, vegetable growing . 2nd edition, Ulmer, Stuttgart 1986/1989, ISBN 3-8001-1148-9 , p. 18.
- PDF document from the Chamber of Agriculture NRW on the subject of soil compaction (accessed on December 26, 2010)
