Rhizosphere Dynamics Lab Publications


*denotes Sprunger lab advisee, +denotes student co-author/mentee in collaborative lab

Sprunger, C.D., S.W. Culman, L. Deiss, C. Brock, D. Jackson-Smith. Under Review. Perenniality is more important for maintaining soil health than crop diversification in organic corn systems. Agronomy Journal. 


Culman, S.W., Brock, C., Doohan, D., Jackson-Smith, D., Chaganti, V.N., Herms, C., Kleinhenz, M., Sprunger, C.D., and Spargo, J. Under Review. Base cation saturation ratios vs. sufficiency level of nutrients: a false dichotomy in practice. Agronomy Journal.

Chaganti, V.N., S.W. Culman, C. Herms, C.D. Sprunger, C. Brock, A. Leiva Soto+., D. Doohan. Under Review. Base cation saturation ratios do not impact soil health or grain yields in organic field crops. Agronomy Journal.

*Martin, T. and C.D. Sprunger. Under Review. A meta-analysis of nematode community composition across soil aggregates: Implications for soil carbon dynamics. Applied Soil Ecology.


B.E. O’Neill, C.D. Sprunger and G.P. Robertson. In Press. Do soil health tests match farmer experience? Assessing biological, physical, and chemical indicators in the upper Midwestern United States. Soil Science Society of America.

Lin, E., C.D. Sprunger, J. Hwang+. 2021. The Farmer’s Battlefield: Traditional ecological knowledge and unexploded ordnances in Cambodia. Agriculture and Human Values. 10.1007/s10460-021-10195-0.


Sprunger, C.D., T. Martin*, M. Mann*. 2020. Systems with greater perenniality and crop diversity enhance soil biological health. Agricultural and Environmental Letters. e20030. 

           • Awarded ‘Featured Article’ for issue 


Sprunger, C.D., S.W. Culman, Peralta, A.L. DuPont, S.T., Lennon, J.T., and Snapp, S.S. 2019. Perennial grain crop roots and nitrogen management shape soil food webs and soil carbon dynamics. Soil Biology and Biochemistry, 137:107573. 

Sprunger, C.D., S.W. Culman, C.A. Palm, B. Vanlauwe. 2019. Long-term application of low C:N residues enhances maize yield and soil nutrient pools across Kenya. Nutrient Cycling in Agroecosystems, 114:261-276. 

+Pugliese, J.Y., S.W. Culman, C.D. Sprunger. 2019. Grain and forage harvest of a perennial grain crop, Kernza (Thinopyrum intermedium), increases root biomass and soil nutrient cycling. Plant and Soil, 437: 241-254.

Sprunger, C.D., S.W. Culman, G.P. Robertson, and S.S. Snapp. 2018. How does nitrogen and perenniality influence belowground biomass and nitrogen use efficiency in small grain cereals? Crop Science, 58: 2110 - 2120.

Sprunger, C.D., S.W. Culman, G.P. Robertson, and S.S. Snapp. 2018. Perennial grain on a Midwest Alfisol shows no sign of early soil carbon gain. Renew Agric Food Syst, 33: 360 - 372.


Sprunger, C.D. and G.P. Roberston. 2018. Early accumulation of active fraction soil carbon in newly established cellulosic biofuel systems. Geoderma, 318: 42 - 51.


Sprunger, C.D., L.G. Oates, R.J. Jackson, and G.P. Robertson. 2017. Plant community composition influences fine root production and biomass allocation in perennial bioenergy cropping systems of the upper Midwest, USA. Biomass and Bioenergy, 105: 248 - 258.


*Martin. T and C.D. Sprunger. Rhizosphere dynamics influence nitrogen cycling and crop productivity in diversified corn rotations. To be submitted to Frontiers in Sustainable Food Systems April 6, 2021. Invited paper.


Sprunger, C.D., M. Mann*, S.W. Culman. How do tillage intensity and crop rotational diversity influence aggregate stability on organic farms across the Eastern Corn Belt? To be submitted to Organic Agriculture.

+Moore, J., C.D. Sprunger, A.E. Dorrance, and L.E. Lindsey. Mid-season soybean cyst nematode reproduction factor increased with soybean seeding rate. To be submitted to Crops, Forage, and Turfgrass.

B.E. O’Neill, C.D. Sprunger, J.E. Doll, J. Kerr, K. Chung, and G.P. Robertson. Soil health tests results influence farmer management. To be submitted to Soil Water and Conservation.


Sprunger, C.D. and G.P. Robertson. 2018. Data from: Early accumulation of active fraction soil carbon in newly established cellulosic biofuel systems. Dryad Digital Repository. https://doi.org/10.5061/dryad.7jq46 doi: 10.5061/dryad.7jq46.