Higher fertiliser costs mean that farmers must ensure accurate spreading over the total field area, including irregular shaped, fields and at angled headlands. To achieve this, KRM offer two section control methods: the field proven Standard Section Control and Dynamic Dynamic Section Control for wider spread widths.

Section Control StandardÂ
Section control standard is available on all KRM spreaders and recommended at working widths up to 24m. It works by reducing the quantity of fertiliser being applied in line with the reduced area being spread as short work is encountered. This is done by the double shutter system (shown above in blue).Â
Standard Section Control can be operated manually by the operator on any KRM spreader fitted with our Calibrator Icon,Totz, Zurf or ISObus control systems.Â

Section Control DynamicÂ
Recommended for wider working widths, Section Control Dynamic works in 8 linear steps by simultaneously adjusting the quantity of fertiliser applied and adapting the spread from left to right of the spreader or vice versa at angled headlands or in short work. Two additional pieces (shown in red) are fit as standard to all KRM M-line machines, then using optional Dynamic Control. This system can be operated either manually from the Calibrator Zurf or ISObus or it can be controlled automatically by GPS.Â

The graphs above are produced using actual tray test results and prove that by simply reducing the quantity being applied, the CT (coefficient of transition) always remains low. International standards state the CT should not exceed 25%. Using Section Control standard as the width drops from 24m down to 9m, the CT is always around 10% - an excellent result.Â

The diagram above shows how the shape of our spread pattern changes when Section Control Dynamic is used. Toward the tapering headland, the density of the spread to the right is reduced while the spread to the left is maintained. With this system, ultimate accuracy is maintained over the total field area.Â

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