Key points

• Increased levels of accuracy and precision may provide opportunities for additional spray application techniques, including banded and directed spraying and inter-row shielded spraying.

• Whether the wheel track measurement system is based on imperial or metric units does not matter, provided the same measurement system is used on all machinery.

• Matching the tyre centres of all equipment can reduce crop damage and minimise trafficked areas in the paddock.

• Selecting seeding and spraying equipment that are multiples of a standard width (e.g. the width of the cutter bar on the harvester) can improve the accuracy of applications and reduce over-dosing or under-dosing on the edges of spray passes.

• Matching nozzle spacing to crop row width may improve spray coverage, stubble penetration and may reduce drift potential.