Engelbrecht, G.M., du Preez, C.C. & Spies, J.J., 2007. Response of Lachenalia growing in soil to nitrogen fertilisation during the nursery phase. South African Journal of Plant and Soil 24: 220-227.
Engelbrecht, G.M., du Preez, C.C. & Spies, J.J., 2008. Response of Lachenalia growing in soil to nitrogen fertiliser during the pot plant phase. African Journal of Plant and Soil 25(2): 92-98.
Engelbrecht, G.M., du Preez, C.C. & Spies, J.J., 2010. Response of Lachenalia growing in soil to interactions between nitrogen and phosphorus fertilisation in the nursery phase. South African Journal of Plant and Soil 27(3): 229-234.
Englebrecht, G.M., Ceronio, G.M. & Motseki, P.C., 2010. Nitrogen sources affecting Swiss chard (Beta vulgaris var. cicla) production. South African Journal of Plant and Soil 27(3): 221-228
Workneh, T., Osthoff, G., Steyn, M.S., Engelbrecht, G.M. & Pretorius, J.C., 2011. The effect of preharvest treatment, disinfection and storage enviroment on quality of carrots. Journal of Food Processing and Preservation 35:331-341.
Englebrecht, G.M., Ceronio, G.M. & Mbatha, A.N., 2012. Influence of organic fertiliser on yield and quality of cabbage (Brassica oleraceae var. capitata L.). Acta Hortic. 936: 243-250.
Ceronio, G.M., Englebrecht, G.M. & Mbatha, A.N., 2012. Organic fertiliser use and the potential influence on cabbage (Brassica oleracea var. capitata L.) plant and soil nutrient composition. Acta Hortic. 938:265-271.
Engelbrecht, G.M., Du Preez, C.C. & Spies, J.J., 2007. Respnse of Lachenalia growing in soil to nitrogen fertilisation during the nursery phase. South African Journal of Plant and Soil 24: 220-227.
Engelbrecht, G.M., du Preez, C.C. & Spies, J.J., 2008. Response of Lachenalia growing in soil to nigtrogen fertiliser during the pot plant phase. African Journal of Plant and Soil 25 (2): 92-98.