• design of agricultural machinery, equipment, and agricultural structures
• internal combustion engines as applied to agricultural machinery
• agricultural resource management (including land use and water use)
• water management, conservation, and storage for crop irrigation and livestock production
• surveying and land profiling
• climatology and atmospheric science
• soil management and conservation, including erosion and erosion control
• seeding, tillage, harvesting, and processing of crops
• livestock production, including poultry, fish, and dairy animals
• waste management, including animal waste, agricultural residues, and fertilizer runoff
• food engineering and the processing of agricultural products
• basic principles of circuit analysis, as applied to electrical motors
• physical and chemical properties of materials used in, or produced by, agricultural production
• bioresource engineering, which uses machines on the molecular level to help the environment.
• Design of experiments related to crop and animal production