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3 results

  1. CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, A 03

    The influence of soil compaction and calcium on the uptake of phosphate for flue-cured tobacco

    DREYER J.G.; CLAASSENS A.S.; SCHOLTZ A.
    Lowveld Tobacco Growers Association, Nelspruit, South Africa
    The following problem have lead to this research project: The high application rate of phosphate by the tobacco farmer in the Lowveld and the low phosphorus content that where obtained in the leaves. Phosphates in the leaf correlate with leaf...
  2. CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, AP 20

    Evaluation of tobacco cultivars and metalaxyl to reduce the impact of Phytophthora nicotianae in South Africa

    VAN JAARSVELD E.; WINGFIELD M.J.; DRENTH A.
    Lowveld Tobacco Growers Association, Nelspruit, South Africa
    Phytophthora nicotianae is an important root and stem pathogen of tobacco (Nicotianae tabacum L.) in South Africa. Growers strive to control the resulting disease, known as black shank, with metalaxyl treatments and by planting resistant cultivars....