1. Management of On-Farm Stored Grain Roger Brook, Ph.D., P.E. Agricultural Engineering Department Michigan State University Bringing Knowledge to Life

2. Grain Storage Problems Moisture and air movement Molds and similar pathogens Insects and similar arthropods Rodents

3. Equilibrium Moisture Content

4. Microbial Growth

5. Minimizing Storage Risk

6. Grain Storage Management Prepare your Storage Prepare your Grain Manage Grain Temperature Regular Inspection

7. Prepare your Storage

8. Prepare Your Grain Recommended Moisture

9. Prepare Your Grain Prevent / Remove Broken Kernels Check combine adjustment to minimize grain breakage Review dryer operation to reduce stress cracks Remove broken kernels

10. Center Fill to Help Remove Fines

11. Manage Grain Temperature Cool rapidly, as temperatures allow Don’t over cool for time of year Recommended 30-35F Check temperature of exhaust air

12. Fan Operation Cycle

13. Check Grain Temperature

14. Moisture Migration Results From Non-uniform Temperature

15. GRAIN INSPECTION Look Smell Feel

16. Safety is Important Entrapments Do Happen !!

17. Beware of Bridging

18. Thank You for your Attention Roger Brook Michigan State University Agricultural Engineering Dept. 210 Farrall Hall E. Lansing, MI 48824 Tel: 517-353-4456 Fax: 517-355-7711 Email: brook@msu.edu