- Agronomic: corn, soybeans
- Additional Plants: tobacco
- Animals: poultry
- Animal Production: manure management
- Crop Production: tissue analysis
- Education and Training: demonstration, extension
- Soil Management: 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.