REFEREED ARTICLES:
Chichongue, O., Van Tol, J.J., Du Preez, C.C., Ceronio, G.M. and Kotzé, E. 2022. Short-term effects of tillage systems, fertilization, and cropping patterns on soil chemical properties and maize yields in a loamy sand soil in southern Mozambique. Agronomy 2022, agronomy-1775923.
Loke, P.F., Kotzé, E. and Du Preez, C.C. 2022. Soil Organic Matter Storage in Irrigated Tsitsikamma Dairy Farms with Minimum Tilled Pasture Mixtures: Case Studies. Agriculture 2022, 12, 858. https://doi.org/10.3390/agriculture12060858
Tlomatsana, L.S., Loke, P.F., Kotzé, E. and Aghoghovwia. M.P. 2022. Aggregate dynamics and intra-aggregate carbon contents as influenced by long-term wheat production management in semi-arid South Africa. South African Journal of Plant and Soil 39(1), 1-8. https://doi.org/10.1080/02571862.2021.2009049
Franke, A.C. and Kotzé, E. 2022. High-density grazing in southern Africa: Inspiration by nature leads to conservation? Outlook on Agriculture 51(1), 67-74. https://doi.org/10.1177/00307270221075060
Loke, P.F., Heine, H.G., Rhode, O.H.J., Kotzé, E. and Du Preez, C.C. 2021. Tillage and its temporal effects on soil organic matter and microbial characteristics in the semi-arid central South Africa. Soil Research SR21141, 1-16. https://doi.org/10.1071/SR21141
Loke, P.F., Schimper, J.J., Kotzé, E. and Du Preez, C.C. 2021. Long-term wheat production management effects on soil fertility indicators in the semi-arid eastern Free State, South Africa. South African Journal of Plant and Soil 2021, 01-14.
Seboko, K.R., Kotzé, E., van Tol, J.J. and van Zijl, G. 2021. Characterization of soil carbon stocks in the City of Johannesburg. Land 10(1):83, 1-12.
Loke, P.F., Kotzé, E., Du Preez, C.C. and Twigge, L. 2021. Cross-rangeland comparisons on soil carbon dynamics in the pedoderm of semi-arid and arid South African commercial farms. Geoderma 381, 1-12.
Mamera, M., van Tol, J.J., Aghoghovwia, M.P. and Kotze E. 2020. Sensitivity and Calibration of the FT-IR Spectroscopy on Concentration of Heavy Metal Ions in River and Borehole Water Sources. Applied Sciences 10(21), 77-85.
Motema, T., Kotzé, E., Loke, P.F. and du Preez, C.C. 2020. Response of soil organic matter indices and fractions after 37 years of wheat production management practices in semi-arid South Africa. South African Journal of Plant and Soil 37(2), 136-143.
Ncoyi, K., du Preez, C.C. and Kotzé, E. 2020. Comparison of soil phosphorus fractions after 37 years of wheat production under different management practices in a semi-arid climate. South African Journal of Plant and Soil 37(3), 184-193.
SandhageHofmann, A., Löffler, J., Kotzé, E., Weijers, S., Wingate, V., Wundram, D., Weihermüller, L., Pape, R., du Preez, C.C. and Amelung W. 2020. Woody encroachment and related soil properties in different tenure-based management systems of semiarid rangelands. Geoderma 372, 114399.
Marais, A., Kotzé, E., Labuschagne, J., Visser, L. and Morris, C. 2020. Proposed adaptation of the KMnO4 oxidation method for determining active carbon for South African soils. South African Journal of Science 116 (1/2), 15-16. https://doi.org/10.17159/sajs.2020/6443
Loke, P.F., Kotzé, E., Du Preez, C.C. and Twigge, L. 2019. Dynamics of soil carbon concentrations and quality induced by agricultural land use in central South Africa. Soil Science Society of America Journal 83, 366-379. DOI 10.2136/sssaj2018.11.0423
Loke, P.F., Kotzé, E., du Preez, C.C. and Twigge, L. 2018. Long-term effects of wheat production management practices on some carbon fractions of a semiarid Plinthustalfs. Soil Research 56(6), 601. DOI 10.1071/sr18050
Kotzé, E., Sandhage-Hofmann, A., Amelung, W., Oomen, R.J. and du Preez, C.C. 2017. Soil microbial communities in different rangeland management systems of a sandy savanna and clayey grassland ecosystem, South Africa. Nutrient Cycling in Agroecosystems 107(2), 227-245 https://doi.org/10.1007/s10705-017-9832-3
Kotze, E., Loke, P.F., Akhosi-Setaka, M.C and Du Preez, C.C. 2016. Land use change affecting soil humic substances in three semi-arid agro-ecosystems in South Africa. Agriculture, Ecosystems and Environment, 216, 194-202
Sandhage-Hofmann, A., Kotzé, E., Van Delden, L., Dominiak, M., Fouché, H.J., Van Der Westhuizen, H.C., Oomen, R.J., Du Preez, C.C. and Amelung, W. 2015. Rangeland management effects on soil properties in the savanna biome, South Africa: A case study along grazing gradients in communal and commercial farms. Journal of Arid Environments 120, 14-25.
Loke, P.F., Kotzé, E. and Du Preez, C.C. 2014. Long-term effects of wheat production management practices on exchangeable base cations and cation exchange capacity of a Plinthosol in semi-arid South Africa. Communications in Soil Science and Plant Analysis 45, 1083-1105.
Loke, P.F., Kotzé, E. and Du Preez, C.C. 2013. Impact of long-term wheat production management practices on soil acidity, phosphorus and some micronutrients in a semi-arid Plinthosol. Soil Research 51, 415-426.
Kotzé, E., Sandhage-Hofmann, A., Meinel, J., Du Preez, C.C. and Amelung, W. 2013. Rangeland management impacts on the properties of clayey soils along grazing gradients in the semi-arid grassland biome of South Africa. Journal of Arid Environments 97, 220-229.
Loke, P.F., Kotzé, E. and Du Preez, C.C. 2012. Changes in soil organic matter indices following 32 years of different wheat production management practices in semi-arid South Africa. Nutrient Cycling in Agroecosystems 94, 97-109.
Kotzé, E. and Du Preez, C.C. 2008. Influence of long-term wheat residue management on acidity and macronutrients in an Avalon soil. South African Journal of Plant and Soil 25, 14-21.
Kotzé, E. and Du Preez, C.C. 2007. Influence of long-term wheat residue management on the organic matter of an Avalon soil. South African Journal of Plant and Soil 24, 114-119.
Hensley, M., Le Roux, P.A.L., Du Preez, C.C., Van Huyssteen, C.W., Kotzé, E. and Van Rensburg, L.D. 2006. Soils: the Free State’s agricultural base. The South African Geographical Journal 88, 11-21.
Du Preez, C.C., Steyn, J.T. and Kotzé, E. 2001. Long-term effects of wheat residue management on some fertility indicators of a semi-arid Plinthosol. Soil and Tillage Research 63, 25-33.
Kotzé, E., Du Preez, C.C. and Bennie, A.T.P. 2001. Soil degradation and crop production in Africa. African Soils 33, 35-55.
CHAPTERS IN BOOKS:
Du Preez, C.C., Kotzé, E., and Van Huyssteen, C.W. 2018. Soils, Agriculture and Food. In: The Geography of South Africa: Contemporary Changes and New Directions. (Eds.) Knight and Rogerson, Springer. p 111-124. https://doi.org/10.1007/978-3-319-94974-1
Du Preez, C.C., Kotzé, E. and Van Huyssteen, C.W. 2018. Southern African soils and their susceptibility to degradation. In: Southern African Landscapes and Environmental Change. (Eds.) Holmes and Boardman, Routledge. p 29-52.
Du Preez, C.C., Van Huyssteen, C.W., Kotzé, E. and Van Tol, J.J. 2019. Ecosystem services in sustainable food systems: operational definition, concepts and applications. In: The Role of Ecosystem Services in Sustainable Food Systems. (Eds.) Rusinamhodzi, Academic Press (imprint of Elsevier). p 17-42.
Kotzé, E., Snyman, H.A., and Du Preez, C.C. 2019. Rangeland management and soil quality in South Africa. In: Soil Degradation and Restoration in Africa (Eds.) Lal and Stewart, Taylor and Francis. p 145-170.
Chichongue, O., Van Tol, J.J., Du Preez, C.C., Ceronio, G.M. and Kotzé, E. 2022. Short-term effects of tillage systems, fertilization, and cropping patterns on soil chemical properties and maize yields in a loamy sand soil in southern Mozambique. Agronomy 2022, agronomy-1775923.
Loke, P.F., Kotzé, E. and Du Preez, C.C. 2022. Soil Organic Matter Storage in Irrigated Tsitsikamma Dairy Farms with Minimum Tilled Pasture Mixtures: Case Studies. Agriculture 2022, 12, 858. https://doi.org/10.3390/agriculture12060858
Tlomatsana, L.S., Loke, P.F., Kotzé, E. and Aghoghovwia. M.P. 2022. Aggregate dynamics and intra-aggregate carbon contents as influenced by long-term wheat production management in semi-arid South Africa. South African Journal of Plant and Soil 39(1), 1-8. https://doi.org/10.1080/02571862.2021.2009049
Franke, A.C. and Kotzé, E. 2022. High-density grazing in southern Africa: Inspiration by nature leads to conservation? Outlook on Agriculture 51(1), 67-74. https://doi.org/10.1177/00307270221075060
Loke, P.F., Heine, H.G., Rhode, O.H.J., Kotzé, E. and Du Preez, C.C. 2021. Tillage and its temporal effects on soil organic matter and microbial characteristics in the semi-arid central South Africa. Soil Research SR21141, 1-16. https://doi.org/10.1071/SR21141
Loke, P.F., Schimper, J.J., Kotzé, E. and Du Preez, C.C. 2021. Long-term wheat production management effects on soil fertility indicators in the semi-arid eastern Free State, South Africa. South African Journal of Plant and Soil 2021, 01-14.
Seboko, K.R., Kotzé, E., van Tol, J.J. and van Zijl, G. 2021. Characterization of soil carbon stocks in the City of Johannesburg. Land 10(1):83, 1-12.
Loke, P.F., Kotzé, E., Du Preez, C.C. and Twigge, L. 2021. Cross-rangeland comparisons on soil carbon dynamics in the pedoderm of semi-arid and arid South African commercial farms. Geoderma 381, 1-12.
Mamera, M., van Tol, J.J., Aghoghovwia, M.P. and Kotze E. 2020. Sensitivity and Calibration of the FT-IR Spectroscopy on Concentration of Heavy Metal Ions in River and Borehole Water Sources. Applied Sciences 10(21), 77-85.
Motema, T., Kotzé, E., Loke, P.F. and du Preez, C.C. 2020. Response of soil organic matter indices and fractions after 37 years of wheat production management practices in semi-arid South Africa. South African Journal of Plant and Soil 37(2), 136-143.
Ncoyi, K., du Preez, C.C. and Kotzé, E. 2020. Comparison of soil phosphorus fractions after 37 years of wheat production under different management practices in a semi-arid climate. South African Journal of Plant and Soil 37(3), 184-193.
SandhageHofmann, A., Löffler, J., Kotzé, E., Weijers, S., Wingate, V., Wundram, D., Weihermüller, L., Pape, R., du Preez, C.C. and Amelung W. 2020. Woody encroachment and related soil properties in different tenure-based management systems of semiarid rangelands. Geoderma 372, 114399.
Marais, A., Kotzé, E., Labuschagne, J., Visser, L. and Morris, C. 2020. Proposed adaptation of the KMnO4 oxidation method for determining active carbon for South African soils. South African Journal of Science 116 (1/2), 15-16. https://doi.org/10.17159/sajs.2020/6443
Loke, P.F., Kotzé, E., Du Preez, C.C. and Twigge, L. 2019. Dynamics of soil carbon concentrations and quality induced by agricultural land use in central South Africa. Soil Science Society of America Journal 83, 366-379. DOI 10.2136/sssaj2018.11.0423
Loke, P.F., Kotzé, E., du Preez, C.C. and Twigge, L. 2018. Long-term effects of wheat production management practices on some carbon fractions of a semiarid Plinthustalfs. Soil Research 56(6), 601. DOI 10.1071/sr18050
Kotzé, E., Sandhage-Hofmann, A., Amelung, W., Oomen, R.J. and du Preez, C.C. 2017. Soil microbial communities in different rangeland management systems of a sandy savanna and clayey grassland ecosystem, South Africa. Nutrient Cycling in Agroecosystems 107(2), 227-245 https://doi.org/10.1007/s10705-017-9832-3
Kotze, E., Loke, P.F., Akhosi-Setaka, M.C and Du Preez, C.C. 2016. Land use change affecting soil humic substances in three semi-arid agro-ecosystems in South Africa. Agriculture, Ecosystems and Environment, 216, 194-202