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Economics of Soil and Tillage. ISU Extension: Agronomy Science.nationalgeographic.com. Total Soil Erosion per Cropland Acre. Natural Resources Inventory, USDA (2003). U.S. Erosion. Iowa’s Share: 139,000,000 Tons Average: 5.4 Tons/acre. WATER EROSION – BUTLER COUNTY.
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ISU Extension: Agronomy Science.nationalgeographic.com
Total Soil Erosion per Cropland Acre Natural Resources Inventory, USDA (2003)
U.S. Erosion Iowa’s Share: 139,000,000 Tons Average: 5.4 Tons/acre
THE MISSISSIPPI RIVER ROOT RIVER AFTER 2” RAIN
NRCS Estimate What is the value of the lost soil functioning?
“there was still a decrease in yield not corrected by the higher amount of N fertilizer added” Fenton (2005) Erosional impact on organic matter content and productivity of selected Iowa soils.
Other Revenue Opportunities • .6 Tons CO2/year Value of 1 ton = $3.80 to $7.50 Additional Profit = $2.28 to $4.50 • Requires commitment ~5 years • Strip Till Included • Current Programs: • Iowa Farm Bureau • National Farmer’s Union
Economics of No Till • We have a problem • Partial budgeting • Soil has Value ($6-10) • Stover has value • Practices can prevent erosion – saving $$ • Do conservation, get paid
Questions? Andy Herringshaw Bremer Co. Floyd Co.