Peer-reviewed Journal Papers:

1. Iheshiulo E.M.-A., F.J. Larney, G. Hernandez-Ramirez, M. St. Luce, K. Liu, and H.W. Chau. Do Diversified Crop Rotations Influence Soil Physical Health? A Meta-Analysis. Soil and Tillage Research 233, 105781

2. Lin, S., Hernandez-Ramirez, G., Kryzanowski, L., Lohstraeter, G., Wallace, T. Adding inhibitors to manure injections can mitigate nitrous oxide emissions from barley croplands. Nutr Cycl Agroecosyst (2023).

3. Schulze, C., Oliver Sonnentag, Carolina Voigt, Lauren Thompson, Lona van Delden, Liam Heffernan, Guillermo Hernandez-Ramirez, McKenzie Kuhn, Sisi Lin and David Olefeldt. Nitrous Oxide Fluxes in Permafrost Peatlands remain negligible after Wildfire and Thermokarst Disturbance. Journal of Geophysical Research – Biogeosciences.

4. Syazwan Sulaiman, Namasivayam Navaranjan, Guillermo Hernandez-Ramirez, Zohrah Sulaiman. 2023. Plant residues ameliorate pH of agricultural acid soil in a laboratory incubation: a meta-analysis. Journal of Plant Nutrition and Soil Science. 186: 330-338 doi: 10.1002/jpln.202200332

5. Daly, E.J., K. Kim, Hernandez-Ramirez, G., and K. Klimchuk. 2023. The response of soil physical quality parameters to a perennial grain crop. Agriculture, Ecosystems and Environment. 343, 108265

6. Pelster, D.E., A. Thiagarajan, B.C. Liang, M.H. Chantigny, C. Wagner-Riddle, K. Congreves, R. Lemke, A. Glenn, M. Tenuta, Hernandez-Ramirez, G., S. Bittman, D. Hunt, J. Owens, J.D. MacDonald. Ratio of non-growing season to growing season N2O emissions in Canadian croplands: an update to national inventory methodology. Canadian Journal of Soil Science.

7. Lee, A., Neuberger, P., Omokanye, A., Hernandez‑Ramirez, G., K. Kim, M.A. Gorzelak. 2023. Arbuscular mycorrhizal fungi in oat-pea intercropping. Sci Rep 13, 390.

8. Thilakarathna, S.K., M. Konschuh, S.A. Woods, Hernandez-Ramirez, G. Nitrous oxide emissions and productivity of irrigated potato: Effects of nitrogen fertilization options. Agronomy Journal.

9. Kim, K.*, Daly, EJ, M. Gorzelak, Hernandez-Ramirez, G. 2022. Soil organic matter pools response to perennial grain cropping and nitrogen fertilizer. Soil and Tillage Research. 220, 105376

10. Kim, K.*, P. Neuberger, Daly, EJ, M. Gorzelak, Hernandez-Ramirez, G. 2022. Arbuscular mycorrhizal fungi community linkages to soil nutrient availability across contrasting agroecosystems. Applied Soil Ecology. 176, 104464

11. Kim, K.*, Daly, EJ, Flesch, T.K., Coates, T.W., Hernandez-Ramirez, G. 2022. Carbon and water dynamics of a perennial versus an annual grain crop in temperate agroecosystems. Agriculture and Forest Meteorology 314, 108805

12. Lin, S*, Hernandez-Ramirez, G. 2022. Increased soil-derived N2O production following a simulated fall-freeze-thaw cycle: Effects of fall urea addition, soil moisture, and history of manure applications. Biogeochemistry. 157, 379–398

13. Daly, EJ*, K Kim, Hernandez-Ramirez, G, T.K Flesch. 2022. Perennial grain crops reduce N2O emissions under specific site conditions. Agriculture, Ecosystems and Environment 326, 107802.

14. Daly, EJ*, Hernandez-Ramirez, G, D. Puurveen, C. Ducholke, K. Kim, L. Oatway. 2022. Perennial rye as a grain crop in Alberta, Canada: Prospects and challenges. Agronomy Journal 114:471-489. doi: 10.1002/agj2.20965

15. Roman-Perez C.C.*, Hernandez-Ramirez, G. 2021. Nitrous oxide production and nitrogen transformations in a soil amended with biosolids. Canadian Journal of Soil Science,

16. Coates, TW, Alam, M, Flesch, TK*, Hernandez-Ramirez G. 2021. Field testing two flux footprint models. Atmos. Meas. Tech., 14, 7147–7152,

17. Roman-Perez, C.C., Hernandez-Ramirez, G.*, Kryzanowski, L., Puurveen, D., Lohstraeter G. 2021. Greenhouse gas emissions, nitrogen dynamics and barley productivity as impacted by biosolids applications. Agriculture, Ecosystems, and Environment 107577

18. Lin, S.*, Mezbahuddin, S., Grant, R., Hernandez-Ramirez, G. 2021. How could simulated dewatering of slurry mitigate nitrous oxide emissions from fall and spring injections? – A modelling study in a Chernozem soil in Western Canada. Science of the Total Environment. 796, 148758

19. Omokanye, A.*, Hernandez-Ramirez, G., Lardner H.A., Al-Maqtari B, Gill KS and Lee A. 2021. Alternative forage feeds for beef cattle in Northwestern Alberta, Canada: Forage yield and nutritive value of forage brassicas and forbs. Journal of Applied Animal Research. 49, 203-210.

20. Hernandez-Ramirez G.*, Sauer T.J., Yury G. Chendev, Alexander N. Gennadiev. 2021. Nonlinear turnover rates of soil carbon following cultivation of native grasslands and subsequent afforestation of croplands. Soil, 7:415–431.

21. Hernandez-Ramirez G.*, Reiner Ruser, Dong-Gill Kim. 2021. How does soil compaction alter nitrous oxide fluxes? A meta-analysis. Soil & Tillage Research 211 105036

22. Thilakarathna, S.K., Hernandez-Ramirez, G.* 2021. Primings of soil organic matter and denitrification mediate the effects of moisture on nitrous oxide production. Soil Biology and Biochemistry. 155:108166

23. Lin, S., and G. Hernandez-Ramirez*. 2021. Nitrogen turnover and N2O production in incubated soils after receiving field applications of liquid manure and nitrification inhibitors. Canadian Journal of Soil Science, 101 (2), 290-304

24. Sauer T.J.*, C. Dold, A.J. Ashworth, C.C. Nieman, G. Hernandez-Ramirez, D. Philipp, A.N. Gennadiev, and Y.G. Chendev. Agroforestry practices for soil conservation and resilient agriculture. 2021. In: Ranjith Udawatta and Shibu Jose (eds.). Agroforestry and Ecosystem Services. Springer, 532 pages.

25. Kim, K, Daly E.J*, Hernandez-Ramirez, G. 2021. Perennial grain cropping enhances the soil methane sink in temperate agroecosystems. Geoderma 388.

26. Omokanye A.*, Hernandez-Ramirez, G., Lardner H.A., Al-Maqtari B, Gill KS and Lee A. 2020. The evaluation of warm-season annual grasses as alternative sources of forage crops for beef cattle diets under northwestern Alberta conditions. Journal of Crop Improvement 35:4, 536-546,

27. Roman-Perez C.C., Hernandez-Ramirez, G*. 2021. Sources and priming of N2O production across a range of moisture contents in a soil with high organic matter. Journal of Environmental Quality 50:94-109 doi: 10.1002/jeq2.20172

28. Thilakarathna, S.K., Hernandez-Ramirez, G.* 2021. How does management legacy, nitrogen addition and nitrification inhibition impact soil organic matter priming and nitrous oxide production? Journal of Environmental Quality 50:78-93. doi: 10.1002/jeq2.20168

29. Thilakarathna, S.K. Hernandez-Ramirez, G.*, Puurveen, D., Kryzanowski L, Lohstraeter G, Powers L-A, Quan, N., and Tenuta, M. 2020. Nitrous oxide emissions and nitrogen use efficiency in wheat: n fertilization timing and formulation, soil N, and weather effects. Soil Science Society of America Journal 84:1910–1927 doi: 10.1002/saj2.20145

30. Daly E.J*, and G. Hernandez-Ramirez. 2020. Sources and priming of soil N2O and CO2 production: nitrogen and simulated exudate additions. Soil Biology and Biochemistry. 149:107942.

31. Omokanye, A.*, B. Al-Maqtari, H.A. Lardner, G. Hernandez-Ramirez, K.S. Gill, L. Sreekumar, A. Lee. 2020. Forage potential of corn intercrops for beef cattle diets in Northwestern Alberta. Crop, Forage & Turfgrass Management 16843655

32. Chai L.L., Hernandez-Ramirez G.*, M. Dyck, D. Pauly, L. Kryzanowski, A. Middleton, L-A. Powers, G. Lohstraeter, and D. Werk. 2020. Can fertigation reduce nitrous oxide emissions from wheat and canola fields? Science of the Total Environment. 745:141014

33. Lin, S., and G. Hernandez-Ramirez*. 2020. Nitrous oxide emissions from manured soils as a function of various nitrification inhibitor rates and soil moisture contents. Science of the Total Environment. 738:139669.

34. Kiani, M, Hernandez-Ramirez, G.*, Quideau S. (2020). Spatial variation of soil quality indicators as a function of land use and topography. Canadian Journal of Soil Science, 100(4):463–478

35. Grant R.F.*, Lin, S., Hernandez-Ramirez, G. 2020. Modelling nitrification inhibitor effects on N2O emissions after fall and spring-applied slurry by reducing nitrifier nh4+ oxidation rate. Biogeosciences. 17:2021–2039.

36. Chai, LL, Hernandez-Ramirez, G*, Hik, DS, Barrio, IC, Frost, CM, Soto, CC, Esquivel-Hernandez, G. 2020. A methane sink in the Central American high elevation paramo: Topographic, soil moisture and vegetation effects. Geoderma 362:114092

37. Brachmann, C.*; Hernandez-Ramirez, G., Hik, D. 2020. CH4 uptake along a successional gradient in temperate alpine soils. Biogeochemistry 147:109–123. DOI: 10.1007/s10533-019-00630-0

38. Rees, F*, Quideau S, Dyck M, Hernandez-Ramirez G., Yarmuch M. 2020. Water and nutrient retention in coarse-textured soil profiles from the Athabasca oil sand region. Applied Geochemistry 114:104526

39. Ralston A, Hernandez-Ramirez G., Dyck M., MacKenzie M.D., and Quideau S.A. 2019. Mobile learning and student engagement in remote field activities. First Monday 24:11 4 November doi:

40. Guenette, KG*, Hernandez-Ramirez, G., Gamache P, Andreiuk R, Fausak L (2019). Soil structure dynamics in annual croplands under controlled traffic management. Canadian Journal of Soil Science, 99(2):146-160

41. Trabue, S.*, Scoggin K, Tyndall J, Sauer TJ, Hernandez-Ramirez G., Pfeiffer R, Hatfield J. 2019. Odorous compounds sources and transport from a swine deep-pit finishing operation: A case study. Journal of Environmental Management 233:12-23

42. Guenette, KG, Hernandez-Ramirez, G.*. (2018). Can faba bean physiological responses stem from contrasting traffic management regimes? Agronomy, 8(10), 200

43. Li, JC, Hernandez-Ramirez, G.*, Kiani, M, Quideau, S, Smith, E, Janzen, H, Larney, F, Puurveen, D (2018). Soil organic matter dynamics in long-term temperate agroecosystems: rotation and nutrient addition effects. Canadian Journal of Soil Science, 98, 232-245

44. Guenette, KG, Hernandez-Ramirez, G.* (2018). Tracking the influence of controlled traffic regimes on field scale soil variability and geospatial modeling techniques. Geoderma 328:66-78

45. Lin, S, Hernandez-Ramirez, G.*, Kryzanowski L, Wallace T, Grant R, Degenhardt R, Berger N, Sprout C, Lohstraeter G, Powers L-A. (2017). Timing of manure injection and nitrification inhibitors impacts on nitrous oxide emissions and nitrogen transformations in a barley crop. Soil Science Society of America Journal 81:1595-1605.

46. Kiani, M*, Hernandez-Ramirez, G., Quideau S, Smith E, Janzen H, Larney F, Puurveen D. (2017). Quantifying sensitive soil quality indicators across contrasting long-term land management systems: crop rotations and nutrient regimes. Agriculture, Ecosystems, and Environment 248:123–135.

47. Hebb, C, Schoderbek D, Hernandez-Ramirez, G.*, Hewins D, Carlyle CN, Bork E. (2017). Soil physical quality varies among contrasting land uses in Northern Prairie regions. Agriculture, Ecosystems, and Environment 240:14–23.

48. Qiu, W.*, Curtin D, Johnstone P, Beare M, Hernandez-Ramirez, G. (2016). Small-scale spatial variability of plant nutrients and soil organic matter: an arable cropping case study. Communications in Soil Science and Plant Analysis. 47:2189-2199.

49. Chendev YG, Sauer TJ*, Hernandez-Ramirez, G., Burras CL. (2015). History of East European Chernozem soil degradation; protection and restoration by tree windbreaks in the Russian steppe. Sustainability. 7:705-724.

50. Curtin D*, Beare MH, Scott CL, Hernandez-Ramirez, G. and Meenken ED. (2014). Mineralization of soil carbon and nitrogen following physical disturbance: a laboratory assessment. Soil Science Society of America Journal. 78: 925–935.

51. Hernandez-Ramirez, G.*, Lawrence-Smith EJ, Sinton SM, Tabley F, Schwen A, Beare MH, Brown HE. (2014). Root responses to alterations in macroporosity and penetrability in a silt loam soil. Soil Science Society of America Journal. 78:1392–1403.

52. Kim, DG*, Giltrap D, Hernandez-Ramirez, G. (2013). Background nitrous oxide emissions in agricultural and natural lands: A meta-analysis. Plant Soil. 373:17-30.

53. Kim, DG*, Hernandez-Ramirez, G., Giltrap, D. (2013). Linear and nonlinear dependency of direct nitrous oxide emissions on fertilizer nitrogen input: A meta-analysis. Agriculture, Ecosystems and Environment 168:53–65.

54. Hernandez-Ramirez, G., Trabue SL*, Sauer TJ, Pfeiffer RL, Tyndall JC. (2012). Odor mitigation with tree buffers: swine production case study. Agriculture, Ecosystems, and Environment 149:154–163.

55. Curtin D*, Beare MH, Hernandez-Ramirez, G. (2012). Temperature and moisture effects on microbial biomass and soil organic matter mineralization. Soil Science Society of America Journal. 76:2055-2067.

56. Sauer TJ*, James DE, Cambardella CA, Hernandez-Ramirez, G. (2012). Soil properties following reforestation or afforestation of marginal cropland in Iowa. Plant Soil. 360: 375-390.

57. Hernandez-Ramirez, G.*, A.L. Fletcher, P.D. Jamieson. (2011) Nitrogen partitioning in spring versus winter wheat at various N rates. Agronomy New Zealand Journal 41:125-132

58. Hernandez-Ramirez, G.*, Hatfield, J.L., Parkin, T.B., Sauer T.J., Prueger, J.H. (2011) Carbon dioxide fluxes in corn-soybean rotations in the Midwestern U.S.: inter- and intra-annual variations, and biophysical controls. Agriculture and Forest Meteorology 151:1831– 1842

59. Hernandez-Ramirez, G.*, S.M. Brouder, M.D. Ruark, and R.F. Turco. (2011) Nitrate, phosphate, and ammonium loads at subsurface drains in the eastern corn belt: agroecosystem and nitrogen management. Journal of Environmental Quality 40:1229-1240.

60. Smith, D.R.*, Hernandez-Ramirez, G., S.D. Shalamar, D.L. Bucholtz, and D.E. Stott. (2011) Nitrogen fertilizer and tillage management impacts on non-CO2 greenhouse emissions in corn/soybean and biomass cropping systems. Soil Science Society of America Journal. 75:1070-1082.

61. Hernandez-Ramirez, G.*, T.J. Sauer, J.L. Hatfield, and J.H. Prueger. (2011) Quantifying atmospheric stability conditions at a swine facility and an adjacent corn field in Iowa. Theoretical and Applied Climatology. 105:495–503.

62. Hernandez-Ramirez, G.*, S.M. Brouder, D.R. Smith, and G.E. Van Scoyoc. (2011) Nitrogen partitioning and utilization in corn cropping systems: rotation, N source, and N timing. European Journal of Agronomy 34:190–195

63. Schwen, A.*, Hernandez-Ramirez, G., E.J. Lawrence-Smith, S.M. Sinton, S. Carrick, B.E. Clothier, G.D. Buchan, and W. Loiskandl. (2011) Hydraulic properties and the water-conducting porosity as affected by subsurface compaction using tension infiltrometry. Soil Science Society of America Journal. 75:822-831

64. Hernandez-Ramirez, G.*, T.J. Sauer, C.A. Cambardella, J.R. Brandle, and D.E. James. (2011) Carbon sources and dynamics in afforested and cultivated corn belt soils. Soil Science Society of America Journal. 75:216–225

65. Sauer, T.J.*, Hernandez-Ramirez, G. Agroforestry. (2011). In: J.L. Hatfield and T.J. Sauer (eds.). Soil management: building a stable base for agriculture. ASA-SSSA, US. pp 351–370.

66. Logsdon, S.D.*, T.J. Sauer, Hernandez-Ramirez, G., J.L. Hatfield, A. Kaleita-Forbes, and J.H. Prueger. (2010) Effect of corn or soybean row position on soil water. Soil Science. 175:530-534.

67. Singer, J.W.*, J.L. Heitman, Hernandez-Ramirez, G., T.J. Sauer, J.H. Prueger, and J.L. Hatfield. (2010) Contrasting methods for estimating evapotranspiration in soybean. Agricultural Water Management 98:157–163.

68. Logsdon, S.D.*, K.E. Schilling, Hernandez-Ramirez, G., J.H. Prueger, J.L. Hatfield, and T.J. Sauer. (2010) Field estimation of specific yield in a Central Iowa crop field. Hydrological processes 24:1369-1377

69. Hernandez-Ramirez, G.*, J.L. Hatfield, J.H. Prueger, and T.J. Sauer. (2010) Energy balance and turbulent flux partitioning in a corn-soybean rotation in the Midwestern U.S. Theor. Appl. Climatol. 100:79-92

70. Logsdon, S.D.*, Hernandez-Ramirez, G., J.L. Hatfield, T.J. Sauer, J.H. Prueger, and K.E. Schilling. (2009) Soil water and shallow groundwater relations in an agricultural hillslope. Soil Science Society of America Journal. 73:1461-1468.

71. Sauer, T.J., S.R. Compston, C.P. West, Hernandez-Ramirez, G.*, E.E. Gbur, and T.B. Parkin. (2009) Nitrous oxide emissions from a bermudagrass pasture in Arkansas: poultry litter and interseeded winter rye. Soil Biology and Biochemistry. 41:1417-1424

72. Hernandez-Ramirez, G.*, Brouder, S.M., Smith, D.R., Van Scoyoc, G.E., Michalski, G. (2009) Nitrous oxide production in an Eastern Corn Belt soil: sources and redox range. Soil Science Society of America Journal. 73:1182-1191

73. Hernandez-Ramirez, G., Brouder, S.M.*, D.R. Smith, and G.E. Van Scoyoc. (2009) Greenhouse gas fluxes in an Eastern Corn Belt soil: weather, N source and rotation. Journal of Environmental Quality 38:841-854.

74. Hernandez-Ramirez, G., Brouder, S.M.*, D.R. Smith, and G.E. Van Scoyoc. (2009) Carbon and nitrogen dynamics in an Eastern Corn Belt soil: N source and rotation. Soil Science Society of America Journal. 73:128-137


Examples of Graduate Student Presentations in Actions:

  • Alberta Soil Science Workshop, Edmonton, 2015