1. www.AgClimate4U.org Corn Growing Degree Day Tool (GDD DST ) Crop Management Conference Columbia, MO December 15-16, 2015 Ray Massey University of Missouri masseyr@missouri.edu

2. www.AgClimate4U.org A Little Bit about U2U Our goal is to help producers make better long-term plans on what, when and where to plant, and also how to manage crops for maximum yields and minimum environmental damage.

3. www.AgClimate4U.org

4. Decision Dashboard

5. www.AgClimate4U.org Decision Support Tools

6. www.AgClimate4U.org Corn Growing Degree Days This tool puts current conditions into a 30-year historical perspective and offers trend projections through the end of the calendar year. Growing Degree Day (GDD) projections, combined with analysis of historical analog data, can help you make decisions about:  Climate Risks – Identify the likelihood of reaching maturity before frosts/freezes.  Activity Planning – Consider corn hybrid estimated physiological maturity requirements, along with GDD projections when making seed purchasing and other growing season decisions.  Marketing – Look at historical and projected GDD when considering forward pricing and crop insurance purchases.

7. www.AgClimate4U.org Pick Your Location

8. www.AgClimate4U.org For Example:

9. www.AgClimate4U.org GDD Graph

10. www.AgClimate4U.org Potential For Spring Freeze

11. www.AgClimate4U.org Silking Range

12. www.AgClimate4U.org Black Layer Range

13. www.AgClimate4U.org Potential for Fall Freeze

14. www.AgClimate4U.org Adjust for Planting Date

15. www.AgClimate4U.org Crop Maturity Date

16. www.AgClimate4U.org Freeze Temperature

17. www.AgClimate4U.org Compare Different Years

18. www.AgClimate4U.org Data Details and Down- load

19. www.AgClimate4U.org