1. www.bae.ksu.edu/faculty/wolf/ For more information contact: rewolf@ksu.edu

2. Technology to Improve Application Efficiency Hole # 12 Wamego Country Club

3. Robert Wolf Extension Specialist Application Technology Biological and Agricultural Engineering Kansas State University Randy Price Precision Farming Technologies Engineer and Specialist Biological and Agricultural Engineering Kansas State University Biological and Agricultural Engineering

4. Designed to help apply pesticide products in a more efficient manner. Involved with new technologies that are designed to improve the safety of mixing, loading, and applying of pesticides for both the applicator (Human) and the environment. Recordkeeping. The Role of Computers in Application

5. Components of Computerized Application Systems Sensors Monitors Spray rate controllers Computers (CPU)

6. Monitors: Use the variables that determine GPA to calculate and display the resulting GPA. Operator then makes adjustments to apply the desired GPA. Basic Principles of Operation for Electronic Control Systems

7. Computers: –translate the signal –for display –activate a process Central Processing Unit (CPU)

8. Rate Controlling Systems: Combination of electronic components that will sense or measure conditions, perform calculations based on the variables of application, and will adjust application rates on-the-go. Basic Principles of Operation for Electronic Control Systems

9. Rate Controller systems include Speed sensor Servo-valve/flow meter Calculation Adjustment on-the-go

10. Flow Back Control

11. Basic Principles of Operation for Electronic Control Systems measure or sense speed, flow, flow rate, pressure, clogged nozzles, boom height, and other application related processes. Radar Sensors:

12. Automatic Efficient Precise Advantages of using electronics in pesticide application

13. Added bonus Detecting application malfunctions Bells and whistles!

14. The Influence of Precision Agriculture !

15. What is GPS? GPS is a navigation system that uses satellites overhead, a differential reference station to correct for error, computers and modems to communicate location and calculate where you are in relation to a location map. Preprogrammed or real-time information is processed to make applications of ingredients and pesticides.

16. How They Work WAAS: OmniSTAR®: Similar to WAAS, but with carrier phase (L2) information. RTK: L1 and L2 with Base Station.

17. Typical Accuracies: WAAS – 5 ft. deviations year-to-year. OmniSTAR – 3 to 5 inches XP - +/- 8 inch year-to-year accuracy HP - +/- 4 inch year-to-year accuracy RTK – 1 inch or less year-to-year

18. WAAS Update – New Satellites: WAAS Satellites 122 and 134 taken out of service July 31, 2008. These were the main Satellites for WAAS reception. Upgraded with 135 and 138 (newer, higher transmitting power). Older GPS units may need software updating!!!

19. GPS Components

22. Automatic Boom Height Control www.norac.ca/US/uc4.htm

23. Spray Controller Components

24. Automatic Boom Section Control

25. Automatic Boom Swath Control

26. Automatic Boom Section Control

35. Variable Rate/Mapped Applications Predeveloped application rates dependent on target variables (weed pressures, species, size) Issues with application speed

36. Autonomous Vehicles: