As part of a research programme on the synthesis of the vegetation of the western Grassland Biome, the plant communities of the D land type of the north-western Orange Free State were investigated. The results of a numerical classification (TWINSPAN) of 59 reievés were refined by Braun-Blanquet procedures. The analyses revealed eight plant communities which may be grouped into two major communities. A hierarchical classification, description and ecological interpretation of the plant communities, and an ordination (DECORANA) with associated environmental gradients, are presented.
FINANCIAL EVALUATION OF TILLAGE SYSTEMS FOR MAIZE ON SANDY SOILS IN THE NORTH-WESTERN FREE STATE
