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Christopher Graham

Photo of Christopher Graham
Title Assistant Professor/Extension Specialist-Agronomist
Office Building Off-Campus
Mailing Address South Dakota State University
West River Ag Center
1905 Plaza Blvd
Rapid City, SD 57702

Originally a native of South Dakota, I came to SDSU in 2013. I obtained my BS from Arizona State University. After graduation, I spent a year in Mauritius as a Fulbright Scholar. I then completed an MPA at Columbia University and a PhD from Cornell University, working with Dr. Harold van Es on the nitrogen cycle with a focus on nitrous oxide emissions in agricultural fields. In between my university studies, I have had a number of different projects spread throughout both western and eastern Africa.

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Applications of Research

- Nitrogen and water demands by mixed-species cover crops and the effects to a subsequent cash crop
- Using native rhizobia to increase N fixation in field peas and lentil
- Effects on nitrogen, carbon and microbial populations during the conversion of native prairie to rowcrops

Academic Interests/Expertise

I have broad interests in the interactions between plants, soil and microbes as they affect nutrient and water flows, primarily in semi-arid climates

Area(s) of Research

I spend most of my time researching water and nutrients in semi-arid climates. Most of my work focuses on legumes and small grains. We have some work on cover crops and how they fit into semi-arid rotations where water is the primary limiting factor.

Specialty Area

  • Nitrogen cycle
  • Plant physiology
  • Nitrogen fixation and pulse crops

Education

PhD - Cornell University
MPA - Columbia University
BS - Arizona State University

Extension Responsibilities

My extension responsibilities largely coincide with my research efforts but also include conducting variety trials for spring wheat, winter wheat, oats, field peas, lentils, grain sorghum, forage sorghum and sunflower