2007 journal article
Groundwater nitrate spatial and temporal patterns and correlations: Influence of natural controls and nitrogen management
Vadose Zone Journal, 6(1), 53–66.
By: N. Hong, J. White, R. Weisz, M. Gumpertz, M. Duffera & D. Cassel
Spatial variability of Southeastern US Coastal Plain soil physical properties: Implications for site-specific management
Geoderma, 137(3-4), 327–339.
By: M. Duffera, J. White & R. Weisz
1999 journal article
Estimating the availability of nutrients from processed swine lagoon solids through incubation studies
Bioresource Technology, 70(3), 261–268.
By: M. Duffera, W. Robarge & R. Mikkelsen
Greenhouse evaluation of processed swine lagoon solids as a fertilizer source
Journal of Plant Nutrition, 22(11), 1701–1715.
Soil characteristics and management effects on phosphorus sorption by highland plateau soils of Ethiopia
Soil Science Society of America Journal, 63(5), 1455–1462.
By: M. Duffera & W. Robarge
1996 journal article
Characterization of organic and inorganic phosphorus in the highland plateau soils of Ethiopia
Communications in Soil Science and Plant Analysis, 27(15), 2799.