1. Manure Management and Environmental Quality By Jeff Lorimor, Iowa State University, Ames 32-1

2. Can Livestock (manure) be Environmentally Friendly?

3. All Species are Involved

4. Environmental Friendliness  Water quality - Air quality - Soil Quality  Three questions: 1. Are your inputs and outputs in balance? 1. Are your inputs and outputs in balance? 2. Is the location of your livestock (manure) facility in the right place? 2. Is the location of your livestock (manure) facility in the right place? 3. Do you apply your manure correctly? 3. Do you apply your manure correctly?  If you answer “yes” to these questions, your manure is an environmentally friendly organic nutrient source

5. 1. Are Inputs & Outputs In Balance? Inputs Managed Outputs Losses or Soil Storage Farm boundary

6. Manure Produces Good Crops

7. Corn Yields Using Chicken Manure Nitrogen Treatments Years Check Plot * UAN1X Manure 1X Manure 2X ---------------Kg/ha--------------- Corn from plots: 19984085c8414b9448a9138a 19995460c9131b10479a10636a 20006548c8754b10115a10058a 20016186b8079a9115a9348a 20024567b9682a10555a11377a 5-Year Average 5369c8812b9943a10112a

8. Manure Results in Better Water Quality

9. Nitrate in Tile Flow Date NO 3 -N concentration (mg/L) NO 3 -N loss (kg/ha) CheckUAN1XMN1XMN2XUAN1XMN1XMN2X 1998 Mar ----179.213.72.60.71.6 Apr.-16.312.617.82.84.511.2 May-18.313.317.35.72.97.9 June-20.817.523.824.313.724.7 July-19.315.922.311.85.75.6 5-yr. Avg. 8.7c20.4b17.4b33.6a26.7b15.2b33.2a

10. Soil Nitrates Under Manured Field Field Plots Depth cm Depth cm Check Check UAN 1X UAN 1X Manure 1X Manure 2X 0-1513.016.216.517.9 Before15-303.15.86.37.0 Planting30-611.13.62.72.7 May 1998 61-91 ----0.90.60.9

11. A Good Nutrient Balance is Important Farm Boundary Inputs Feed Animals Irrigation Water Fertilizer Legume N Managed Outputs Meat, Milk & eggs Crops Manure Losses or Soil Storage Storage

12. 2. Where Does Your Manure Go?...Hopefully NOT Down the River

13. Bad Feeding Location

14. Not A Good Location

15. Livestock Manure Is Collected Where it is Generated

16. Not a Good Location for Storage

17. A Better Place to Store Manure

18. 3. Do you Apply Your Manure Correctly? …Good Distribution Allows you to use your Manure Efficiently

19. Solid Manure Uniform nutrient distribution is more difficult to achieve with solid manure than liquid

20. Summary Properly managed manure is not an environmental threat. If you… - Store the manure safely - Don’t let it get into the waterways - Use the nutrients efficiently Manure is a good source of plant nutrients, more environmentally friendly than purchased fertilizer

21. Young Scientists on Iowa Farm

22. Romanian Friends on “The Bridges of Madison County” Honorin, Adrian, Georgiana Honorin, Me, Georgiana