Results of eucalyptus species trials and establishment methods on seasonally water logged soils at Turbo.

Abstract

Three trials were established at Turbo in 1974 and 1975 to select fast growing species and to develop methods of establishing trees on seasonally waterlogged soils (vleis). The first trial tested the effects of four methods of site preparation on performance of E. saligna, E.camaldulensis and E. citriodora. The four methods were spot cultivation; ploughing and harrowing; ploughing, harrowing and ridging; and single moulboard furrows. The second trial compared the performance of some pines and eucalyptus and their provenances using ploughing, harrowing and ridging methods. The results indicate that the most effective and economical method was single moulboard furrows. The second best was ploughing, harrowing and ridging but was much expensive. The best species for these soils were E. grandis and E. saligna.