1. The Rotational Benefits of Forages: Organic Farming Forages are an integral part of an organic system due to soil building and pest suppression factors

3. Glenlea Long-Term Crop Rotation Study

4. -f/-p (organic) +f/-p -f/+p +f/+p (conventional)

5. 22 bu/acre - +pesticide +fertilizer 1999

6. 22 bu/acre - 8th organic crop

7. Economics Glenlea Rotation - 1992-1998 Diversified system with low inputs more profitable than straight grain system with inputs

8. Legume plants naturally occur in no input rotation Rothamsted, UK No fertilizer/No weedkiller rotation since 1843

9. Crop and Weed Populations: Glenlea, 2000 wheat G foxtail RR Pweed WM --------------- plants/m2 -------------- rotation/input wpwf full 268 46 45 11 organic 380 328 11 409 wscwf full 318 18 123 545 organic 367 110 31 446 waaf full 314 6 5 24 organic 387 88 6 977

10. Dandelion a concern in alfalfa based rotations.

11. Phosphorus fertilization also a concern in forage based rotations.

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