Faculty of Natural and Agricultural Sciences
School of Agricultural and Food Sciences
Department of Plant Production and Soil Science
Claassens, AS
MSc(Agric) DSc(Agric)(Pret) - Associate Professor
Contact Details
Research Interests
Research Output
Contact Details:
Telephone number: 012 420 3213
Fax number: 012 420 3221
E-mail address: claassens@postino.up.ac.za
Research Interests:
Soil water relations and plant water use
Research Output:
Research articles in refereed specialist journals:
Belay TA, Claassens AS, Wehner FC: 2002. Effect of direct nitrogen and potassium and residual phosphorus fertilizers on soil chemical properties, microbial components and maize yield under long-term crop rotation. Biology and Fertility of Soils, 35, pp 420-427.
Claassens AS, van der Waals JH: 2002. Accurate lime recommendations under South African conditions. Communications in Soil Science and Plant Analysis, 33 (15-18), pp 3059-3074.
Belay TA, Claassens AS, Wehner FC: 2002. Soil nutrient contents, microbial properties and maize yield under long-term legume-based crop rotation and fertilization: A comparison of residual effect of manure and NPK fertilizers. South African Journal of Plant and Soil, 19 (2), pp 104-110.
Jovanovic NZ, Annadale JG, Claassens AS, Lorentz SL, Tanner PD, Aken ME, Hodgson FDI: 2002. Commercial production of crops irrigated with gypsiferous mine water. Water SA, 28 (4) / Okt, pp 413-423.
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