Faculty of Natural and Agricultural Sciences
School of Agricultural and Food Sciences
Department of Plant Production and Soil Science
Rethman, NFG
MSc(Agric) PhD(Agric)(Natal) - Professor
Contact Details
Research Interests
Research Output
Contact Details:
Telephone number: 012 420 3225
Fax number: 012 420 4120
E-mail address: norman.rethman@up.ac.za
Research Interests:
Biochemical aspects of the quality and health properties of tea
Sustainable plant production
Soil water relations and plant water use
Research Output:
Research articles in refereed specialist journals:
Hassen A, Rethman NFG, Apostolides Z, van Niekerk WA: 2007. Influence of moisture stress on growth, dry matter yield and allocation, water use and water use efficiency of four Indigofera species. African Journal of Range and Forage Science, 24 (1), pp 25-34.
Hassen A, Gizachew L, Rethman NFG, van Niekerk WA: 2007. Influence of undersowing forages in maize on grain, fodder yield and soil properties in sub-humid region of western Ethiopia. African Journal of Range and Forage Science, 24 (1), pp 35-41, Full Text
Hassen A, Rethman NFG, van Niekerk WA, Tjelele TJ: 2007. Influence of season/year and species on chemical composition and in vitro digestibility of five Indigofera accessions. Animal Feed Science and Technology, 136, pp 312-322.
Hassen A, van Niekerk WA, Rethman NFG, Tjelele TJ: 2007. Intake and in vivo digestibility of Indigofera forage compared to Medicago sativa and Leucaena leucocephala by sheep. South African Journal of Animal Science, 36 (5-1), pp 67-70.
van Niekerk WA, Hassen A, Vermaak PJ, Rethman NFG, Coertze RJ: 2007. Ruminal degradation and in vitro gas production characteristics of foliage from Atriplex species and Cassia sturtii. South African Journal of Animal Science, 36 (5-1), pp 54-58.
du Toit CJL, van Niekerk WA, Hassen A, Coertze RJ, Rethman NFG: 2007. Fermentation in the rumen of sheep fed Atriplex nummularia cv. De Kock supplemented with incremental level of barley and maize grain. South African Journal of Animal Science, 36 (5-1), pp 74-77.
Research and technical/policy output for clients:
Annandale JG, Rethman NFG, Keen C, Botha CC: Science + Technology Transfer: 2007. Water use efficiency of multi-crop agro forestry systems, with particular reference to small scale farmers in semi-arid areas. WRC 1047/1/07 pp 143.. For: Water Research Commission.
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