- Agronomic: corn, soybeans
- Animals: bovine, swine, poultry
- Animal Production: manure management
- Crop Production: organic fertilizers, conservation tillage
- Education and Training: extension, on-farm/ranch research
- 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.