SUM ＆ SUH SUBSOILER Tillage Equipment

Breathe life into your soils

New Holland SUM medium duty and SUH heavy duty subsoilers are extremely versatile. Developed with features to enable them to match all soil types, simple adjustments allow efficient operation in widely varying conditions and can work directly into land following crops with high levels of residues. All models feature a leg with a reversible tip, a pair of adjustable and detachable side blade clod busters and a clod splitter to improve soil shatter. Working depth is accurately controlled by twin rear 220mm diameter spike rollers with an adjustable tilt angle. This enables the finish to be adjusted to suit the soil and conditions. Heavy soils will be left level and clod free, lighter soils with an open surface less liable to capping in adverse conditions. SUM models can be set to work at depths of between 200mm to 500mm. SUH models are designed to work between 250mm 550mm.

Looking after the subsoil the New Holland way
SUM and SUH subsoilers form an integral part of the New Holland approach to minimum tillage. Designed to improve the structure of soils by loosening soil both vertically and laterally in the root zone, the rear rollers aid the incorporation of crop residues into the topsoil to boost soil organic matter. A key to the effective subsoil loosening ability of SUM and SUH subsoilers is that the leg breaks soil from below without inversion. Further loosening by the adjustable lateral wings helps to ensure air and moisture can penetrate through the soil across the entire working width of the implement. The lateral wings eliminate the unworked banding of soil associated with more traditional subsoilers.

Efficient, effective and economical. The New Holland advantage.
Several key features of SUM and SUH make these subsoilers more efficient, effective and economical.
• Unique low draft leg design reduces fuel consumption
• High productivity at recommended working speeds of 7.5 to 8.5km/hr
• Effective in all soil types
• Easy depth setting and accurate depth control
• No inversion or subsoil mixing
• Adjustable leg side blades enhance soil aeration across the working width
• Leg mounted clod splitter enhances soil shatter and protects leg from wear
• Reversible leg points, attached with roll pin fasteners, can be changed quickly
• Wave frame design and for excellent clearance in heavy crop residues
• Large 220mm spiked twin rear rollers incorporate trash, level and consolidate the soil to leave a weatherproof soil ahead of following cultivation

Why use the SUM or SUH to cultivate below the seedbed?

Subsoiling is carried out on some land to help overcome poor localised drainage, reducing crop yields, declining drought tolerance, slow germination and a host of other problems. With SUM and SUH subsoilers, the aim is to encourage the use of these tools as an integral part of planned soil improvement. By working down to depths of up to 550mm, New Holland subsoilers do more than just repair existing damage in the soils rootzone. They enhance the soil and improve its structure with regular use each season. Key to this is the action of the subsoiler legs to loosen the rootzone without mixing soil within the soil profile. This action helps to improve air and nutrient flow down through the soil layers, encouraging root formation deep into the soil. With repeated use over the seasons, combining the action of SUM and SUH subsoilers with minimal cultivation tools such as the New Holland SDM and SDH cultivators will help develop the soils structure and repair damage, alleviate traffic pans and erase yield supressing compaction. Natural soil health is encouraged by improving the flow of air and moisture in the deep rootzone.

Minimal tillage cultivators worked in tandem with SUM and SUH cultivators can eliminate compaction at all levels in the soil profile, as well as ensure air, moisture and nutrients penetrate deeper into the soil for enhanced root growth, deeper into the soils. This will improve draught tolerance and enhance crop vigour for improved plant health and yields.