1. Graeme Cox BEng (Ag) PhD Dave Cox Farmer By

2. optisurface.com Evolution of Landforming We have been landforming since agriculture began

3. optisurface.com Evolution of Landforming –1900s Dumpy & Stakes –1970s Laserplane –1990s Multiplane –2000s OptiSurface* *Patent Pending

4. optisurface.com Benefits of Landforming Higher Yields, Quality and Profit through Minimised water logging Improve infiltration uniformity Sooner trafficability Improved crop establishment Improved uniformity of crop maturity Reduced weed problems

5. optisurface.com OptiSurface Landforming MUCH BETTER!! …provides all of the benefits of traditional laser landforming only: Much cheaper (up to 80%) Much less topsoil removal Much faster

6. optisurface.com Case Study C7 Block: C7 Area: 92 Ha Location: DAVCO Farming, Burdekin Row Cropping (sugar cane) Lateral Move Irrigation

7. optisurface.com Existing Topography C7 Note: vertical scale exaggerated x 100

8. optisurface.com Plane of Best Fit C7

9. optisurface.com Plane of Best Fit - Cut\Fill Map Cut: 791m 3 /ha Cost: $1,190/ha Max Cut: 0.350m C7

10. optisurface.com OptiSurface Design Constraints Minimum Downslope: 1:9000.111% Maximum Downslope: 1:3000.333% Max. Downslope change: 1:40000.025% Minimum Cross-slope: 1:-200-0.500% Maximum Cross-slope: 1:2000.500% Max. Cross-slope change: 1:10000.100%

11. optisurface.com OptiSurface Design C7

12. optisurface.com OptiSurface - Cut\Fill Map Cut: 180m 3 /ha Cost: $270/ha Max Cut: 0.270m C7

13. optisurface.com Long Section Plot Long section plot C7 Downslope: 0.111% to 0.333%

14. optisurface.com Long Section Plot C7 Downslope: 0.050% to 1.000%

15. optisurface.com OptiSurface - Downslope Map C7

16. optisurface.com Runoff Velocity Map FLOW DIRECTION C7 Rainfall: 75mm/hr Max Velocity: 0.44m/s

17. optisurface.com Runoff Depth Map C7 Rainfall: 75mm/hr Infiltration:0mm Max Depth: 0.170m FLOW DIRECTION

18. optisurface.com OptiSurface - Downslope Map C7

19. optisurface.com Design Surface Options –OptiSurface 1D Row drainage in one direction only –OptiSurface 2D Row drainage in two directions –OptiSurface 4D Can drain in any direction as long as it leaves the field

20. optisurface.com Case Study C8 – Existing C8 LS1 LS2

21. optisurface.com OptiSurface 2D Design C8 LS1 LS2

22. optisurface.com Long Section 1 C8

23. optisurface.com Long Section 2 C8

24. optisurface.com OptiSurface 4D Design C8

25. optisurface.com OptiSurface 4D Existing C8

26. optisurface.com Mass Haul Optimisation –Optimise for haul distance –Reduce cost by up to 70% –Mass haul value allows for more accurate earthmoving quotes

27. optisurface.com OptiSurface - Cut\Fill Map Cut: 95m 3 /ha Cost: $200/ha Max Cut: 0.163m B8&B9

28. optisurface.com Mass Haul Optimisation IterationCut (m 3 /ha) Mass Haul (m 3.m) 0922.1 million 1921.4 million 2950.7 million 3971.0 million

29. optisurface.com Contact Us: Contact us for a FREE Design Phone: +61 7 4782 7575 (international) (07) 47827575 (Australia) Email: design@optisurface.comdesign@optisurface.com Visit: www.optisurface.comwww.optisurface.com