- Agronomic: rye
- Crop Production: cover crops
- Education and Training: demonstration, display, extension, farmer to farmer
- Pest Management: allelopathy, competition, mulches - killed
- Production Systems: general crop production
- Soil Management: green manures, soil analysis
Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture or SARE.