Soil samples are arranged in flats according to the fields from which they were collected and wait their turn to be tested.</p> <p>— by Fred Miller, University of Arkansas System Division of Agriculture
Soil samples are arranged in flats according to the fields from which they were collected and wait their turn to be tested.</p> <p>— by Fred Miller, University of Arkansas System Division of Agriculture

Publications

Explore cutting-edge research on soil fertility, nutrient management, and precision agriculture. Topics include predicting soil properties from nutrient data, mapping crop nutrient variability for optimized sampling, using tissue tests to evaluate in-season nutrient management, cover crop impacts on yields and economics, nitrogen release from residues, profit-maximizing fertilizer recommendations, critical nutrient concentrations for monitoring crop nutrition, and guidelines for soil test correlation research.

Selected Peer-Reviewed Manuscripts

  • Drescher, G. L., Slaton, N. A., Roberts, T. L., & Smartt, A. D. (2024). Soil texture and organic matter prediction using Mehlich-3 extractable nutrients. Agrosystems, Geosciences & Environment, e20461. https://doi.org/10.1002/agg2.20461
  • Ortel, C.C., Roberts, T.L., Hoegenauer, K.A., Poncet, A.M., Slaton, N.A., & Ross, W.J. (2023). Mapping variability of soybean leaf potassium concentrations to develop a sampling protocol. Agrosystems, Geosciences & Environment, 6(4), e20439. https://doi.org/10.1002/agg2.20439
  • Hoegenauer, K., Roberts, T., Ortel, C.C., Hardke, J., Richardson, M., & Daniels, M. (2023). Using post‐season tissue nitrogen concentrations to predict adequacy of in‐season nitrogen management. Agrosystems, Geosciences & Environment, 6(4), e20440. https://doi.org/10.1002/agg2.20440
  • Kirkpatrick, D., Roberts, T.L., Brye, K., & Ross, W.J. (2023). Influence of cover crops on soybean yield and partial returns as an alternative to double‐crop soybean in Arkansas. Agronomy Journal, 115(3), 1373-1383. https://doi.org/10.1002/agj2.21312
  • Greub, K.L., & Roberts, T.L. (2023). Does residue incorporation influence available nitrogen release from cereal rye and tillage radish cover crops under controlled conditions? Soil Science Society of America Journal, 87(2), 324-336. https://doi.org/10.1002/saj2.20514
  • Oliver, K., Popp, M.P., Slaton, N.A., Drescher, G.L., & Roberts, T.L. (2022). Profit-maximizing potassium fertilizer recommendations for corn and cotton. Agronomy Journal, 114, 3358– 3376. https://doi.org/10.1002/agj2.21205
  • Gruener, C.E., Drescher, G.L., Slaton, N.A., Roberts, T.L., Gbur, E.E., & Hardke, J.T. (2022). Determination of critical Y-leaf potassium concentrations in pure-line and hybrid rice. Agrosystems, Geosciences & Environment, 5:e20248. https://doi.org/10.1002/agg2.20248
  • Nalley, L.L., Roberts, C., Durand-Morat, A., Roberts, T.L., Shew, A., & Parajuli, R. (2022). Precise nitrogen recommendations improve economic and environmental outcomes in rice production. Environmental Challenges, 9, 100650. https://doi.org/10.1016/j.envc.2022.100650
  • Fulford, A.M., & Roberts, T.L. (2022). Soil total carbon and nitrogen as indicators of rice response to supplemental fertilizer nitrogen. Soil Science Society of America Journal, 86(6), 1665-1676. https://doi.org/10.1002/saj2.20464
  • Chlapecka, J.L., Roberts, T.L., & Hardke, J.T. (2022). Nitrogen management for furrow‐irrigated rice produced on silt‐loam soils. Agronomy Journal, 114(5), 2774-2786. https://doi.org/10.1002/agj2.21136
  • Slaton, N.A., Lyons, S.E., Osmond, D.L., Brouder, S.M., Culman, S.W., Drescher, G., Gatiboni, L.C., Hoben, J., Kleinman, P.J.A., McGrath, J.M., Miller, R.O., Pearce, A., Shober, A.L., Spargo, J.T., & Volenec, J.J. (2021). Minimum dataset and metadata guidelines for soil-test correlation and calibration research. Soil Science Society of America Journal, 86, 19–33. https://doi.org/10.1002/saj2.20338
  • Drescher, G.L., Slaton, N.A., Roberts, T.L., & Smartt, A.D. (2021). Corn yield response to phosphorus and potassium fertilization in Arkansas. Crop, Forage & Turfgrass Management, 7:e20120. https://doi.org/10.1002/cft2.20120
  • Slaton, N.A., Drescher, G.L., Parvej, M.R., & Roberts, T.L. (2021). Dynamic critical potassium concentrations in soybean leaves and petioles for monitoring potassium nutrition. Agronomy Journal, 113, 5472– 5482. https://doi.org/10.1002/agj2.20819
  • Drescher, G.L., Slaton, N.A., Ahmad, U., Smartt, A.D., Roberts, T.L., & Gbur, E.E. (2024). Soil moisture and probe characteristics affect core integrity and soil test results. Soil Science Society of America Journal, 1–18. https://doi.org/10.1002/saj2.20696

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