A 3 point subsoiler is a tractor mounted implement that is used to break up and loosen soil at depths below those typically achieved through traditional
- disk harrow
- or rototiller.
Typically tractor mounted cultivation tools will break up and turn over surface soil to a maximum depth of six to eight inches.
While a 3 point subsoiler has the capability to break up and loosen soil to twice those depths.
3 Point Subsoiler features and benefits
Typically a 3 point subsoiler mounted to a Compact Utility Tractor will reach depths of about 30 cm (12 in). If soil compaction is a problem the 3 point subsoiler will help improve growth in all crops. For agricultural applications angled wings are used to lift up and break the hard pan that builds up through compaction. The design of the implement facilitates deeper tillage, it is suggested that some units can disrupt hard pan ground down to a depth of twenty four inches. There are various claims from manufacturers about the benefits provided in both dry and wet seasons
- When used during dry and hot seasons roots are able to penetrate soil layers deeper to reach moisture and nutrients.
- When used in wet conditions,any water passes easily through the broken up areas, thus reducing the possibility of crops drowning.
Typically agricultural subsoiler implements have multiple depth reach blades with each blade being called a shank or scarifier. Various sources indicate that common subsoilers for agricultural use are available with three, five or seven shanks. In some cases 3 point subsoilers can be up to fifteen feet wide. Mounting options range from some units that are towed behind tractors while others are mounted directly to a three point. Construction typically includes a one piece welded frame.
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