1. 100% PURE GYPSUM 100% AVAILABLE JLM Inc. Gypsum: another tool in the toolbox.

3. Calcium Sulfate Dihydrate (CaSO 4 2H 2 O) Sources of Gypsum: Natural Deposits Power Plants (Synthetic or FGD) Recycled Dry Wall

5. Key Management Factors Soil Air & Water Microbial Activity Nutrients Crop Pest Control - Diseases - Insects - Weeds Hybrids Planting & Tillage

9. The Degradation Spiral Poor land management Soil organic matter loss Compaction and crusting Aggregate breakdown Wind and water erosion Plant yield reduced Soil biological activity declines

11. Alkaline Soils: Helps toxic salts leach out of the root zone. Acidic Soils: Provides usable Calcium to soil. Cal-SO 100 is made from a neutral salt, however it will neutralize soil acidity caused by exchangeable Al + .

13. Clay suspension added to funnels. Time = 0 minutes. Facilitates water movement through soils

14. Filtrates after Na + , Mg 2+ , and Ca 2+ added. Time = 15 min Na + Mg 2+ Ca 2+ 3 drops

18. Studies at the National Soil Erosion Laboratory, West Lafayette, IN

19. Calcium and Gypsum Impact on Water Infiltration

20. Catlin Control Catlin Gypsum + PAM

21.  No Gypsum Gypsum 

22. Effect of Gypsum on Cumulative Alfalfa Yields at Wooster, OH (2000 - 2002) Different letters over each bar represent a significant difference at p ≤ 0.05 . Control + Gypsum A 10 13 16 19 22 25 B t/ac

23. Na + Ca 2+ Clay particle Water

24. Na + Ca 2+

27. Crusting and surface sealing due to dispersion of cultivated surface soil

29. Seedling emergence in crusted soil.

31. Infiltration Crusting and poor infiltration results in runoff and soil erosion Runoff

33. Nu-till in Ohio on the bottom and conventional on the right. Both fields have pattern drainage tiles.

34. Within 2 years, water-soluble Ca from surface applied gypsum is present at 36 in depth. 0 5 0 1 0 0 1 5 0 4 0 0 4 5 0 0 1 2 2 4 3 6 4 8 Soluble Ca (mg L -1 ) Depth (in) Control 3000 lb/ac

36. Van Wert Co.; June, 2003; following 2.3” rain Good Air / Water Mgt. Poor Air / Water Mgt.

37. The result: Van Wert Co.; August, 2003 Good Air / Water Mgt. Poor Air / Water Mgt.

52. 2011 Corn on Corn

53. Corn on Corn Residue

54. 2011 Non-GMO

55. No-Till Bean Ground

56. Sidedress – Foliar

57. Cal-SO 100 can be applied directly to the soil using conventional dry material spreaders