* Agronomist: This is the most general term for a scientist who studies crops and soil management practices to optimize agricultural production.
* Soil Scientist: Focuses on the physical, chemical, and biological properties of soils, their formation, and how they affect crop growth.
* Crop Scientist: Specializes in the growth, development, and yield of crops, including plant breeding, genetics, and disease management.
* Plant Physiologist: Studies the processes and functions of plants, such as photosynthesis, nutrient uptake, and water relations.
* Agricultural Engineer: Applies engineering principles to agricultural production, including machinery, irrigation, and soil conservation.
The specific term would depend on the scientist's specific research area and expertise.