Presentation: 2025 ND EPSCoR Annual conference
October 21, 2025, NDSU Memorial Union, Fargo, North Dakota
A Comparison of Soil Parameters to an Established Crop Productivity Index
Eric
Asa
Associate Professor
North Dakota State University
Co-authors: Charles Nixon, Ph.D. Student, College of Arts and Sciences, North Dakota State University, Bright Awuku, Ph.D. Candidate, CCEE Department, North Dakota State University, Paul Williams-Peniel, Ph.D. Student, CCEE Department, North Dakota State University, Chidiebere Anastacia Ezeh, Ph.D. Student, CCEE Department, North Dakota State University
Session
Concurrent Presentation Session A, Group 2
Sahnish Room
Crop yields depend heavily upon the parameters of different nutrients and chemicals found in the soil. In this study, existing soil parameter data were compared with the United States Department of Agriculture’s National Commodity Crop Productivity Index (NCCPI). Soil data from the SoilGrids system were compared to a geospatial representation of the NCCPI using a geographically weighted regression (GWR) tool to see if any correlations existed between the two datasets. The results were then briefly compared to the real-world needs of some crops to see if the correlations made sense. The study found that while some correlations were shown, future work might help refine this type of comparison to possibly help predict crop performance given these types of pre-existing data.