Border spreading systems

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Side spreading (yield oriented setting)

The adjacent field is also in a crop. In this instance, the small amount of fertiliser being thrown beyond the field’s border can be tolerated. The fertiliser distribution inside the field is maintained so that there is still about 80 % of the actual spread rate even at the field’s edge.

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Boundary spreading (environmentally oriented setting)

If the field is positioned next to a road or against a cycle path, no fertiliser should be thrown beyond the field border. In order to avoid over-fertilisation inside the field, the spread rate on the border side needs to be reduced. This results in slight under-fertilisation at the extreme of the field boundary. The border spreading procedure complies with the requirements of the Fertiliser Directive.

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Water course spreading (environmentally oriented setting)

In cases where a water course is situated directly at the field’s edge, the fertiliser environmental legislation prescribes the maintenance of either a distance of one metre with the aid of a border spreading device, or as much as three metres when not using a border spreading device. In order to prevent over-fertilisation on the inside of the field, the spread rate from the side of the spreader towards the border again has to be reduced.

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AutoTS – comfortable and precise Lateral distribution right up to the field’s border

The disc-integrated AutoTS border spreading system enables the activation of the different border spreading procedures – side, border or watercourse spreading – comfortably via the Terminal in the tractor cab, irrespective of which side.

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The ingenious operating principle of AutoTS

An actuator turns the delivery vane by approx. 10 °, so that the fertiliser is guided via the shorter border spreading vane in border and water course spreading. The combination of speed and using the shorter vane means that the fertiliser is thrown a considerably shorter distance without stressing it mechanically.


  1. AutoTS – position for normal spreading
  2. AutoTS –position of the delivery vane during boundary spreading
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Increased yield on the border thanks to AutoTS

The AutoTS border spreading system provides the user with a very reliably steep border spread pattern and thus optimum growing conditions near to the field edge. As a result, a significant increase in yield compared to previous boundary spreading systems is possible.

The AutoTS spreading system provides automatic rate reduction when border spreading. The rate can be changed in freely selectable percentage steps. As the two spreading discs can be operated independently of each other, an overall or an individual rate change can be set.


AutoTS border spreading system (green line)

  1. The throwing distance of the fertiliser is restricted by a shorter spreading vane.
  2. The fertiliser remains undamaged and is optimally distributed up to the field boundary.
  3. Due to the reduced throwing speed of the fertiliser, only a few granules fall beyond the field boundary.


Conventional border spreading systems (red line)

  1. The mechanical deflection of the fertiliser causes damage to the granules which then drop next to the tramline.
  2. This quantity of damaged fertiliser is then missing from the boundary zone area resulting in under-fertilisation.
  3. Not all the fertiliser granules are mechanically deflected, so that some are spread well beyond the field boundary.
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HeadlandControl (1) ZA-TS_Fendt_Hanglage_d0_kw_DJI_0501_d2_190823

HeadlandControl – Optimum lateral distribution on the headland

  1. Working width
  2. Normal spreading – Throwing distance (2x working width)
  3. Active HeadlandControl
  4. Border spreading
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The problem: Over- and under-fertilisation on the headland

Different fertilisers have different switch-on and switch-off points. In practice, the switch-off points are usually only achieved when the tractor is turning on the headland. The arc of spread behind the tractor swings round to the side creating areas that are either over- or under-fertilised.

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HeadLandControl

The solution: HeadlandControl

When HeadlandControl is activated, the throwing width and spread rate are increased on the inner field side, so that the switch-off point is moved towards the inside of the field. Furthermore, the new part-width section control, which is now adapted to the shape of the spread fan, causes the part-width sections to be switched off from the outside to the inside when entering the headland. Over- and under-fertilised zones on the headland are subsequently avoided.

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Ohne HeadlandControl (1) YaraMila_TS3_720_30m_Standard_90.0_grad-10.0_km_h-30.0_m-30.0_m_002_Details_d1_190823

Switch-off time on the headland: Without HeadlandControl

  • Spreader switches off too late and is already turning
  • Tractor would have to drive beyond the headland tramline

Result: Over- and under-fertilised zones are created


  1. Under-fertilisation (white)
  2. Over-fertilisation (dark-green)
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Mit HeadlandControl (1) YaraMila_TS3_720_30m_Parabel_90.0_grad-10.0_km_h-30.0_m-38.0_m_003_Details_d1_190823

Switch-off time on the headland: With HeadlandControl

  • HeadlandControl means that the spreader continues to apply fertiliser to the crop when it is on the headland
  • The tractor can follow the wheel tracks of the sprayer

Result: Uniform crops across the headland

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