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50 results

  1. CORESTA Congress, Kyoto, 2004, A 02

    Decision support system for soil fertility and water quality - evaluation in FCV tobacco- growing zones of India

    KRISHNAMURTHY V.; RAVISANKAR H.; DEO SINGH K.
    Central Tobacco Research Institute (CTRI), Rajahmundry (A.P.) India
    Information Technology has become an integral part of our day-to-day life. In agriculture, computers are extensively used to disseminate the information on soils, water, climatic conditions, pest and disease management and one such information system...
  2. CORESTA Congress, Kyoto, 2004, APSSPT 02

    The implementation of integrated pest management on flue-cured tobacco cultivation in South Africa

    LUTTIG M.; GELDENHUIJS D.M.; VAN JAARSVELD E.; SCHOLTZ A.
    Lowveld Tobacco Growers Association, Nelspruit, South Africa
    The Lowveld Tobacco Growers Association (LTGA) has developed an Integrated Pest Management (IPM) program as an alternative approach to chemical crop protection. The IPM program includes seedbed implementation as well as field applications. During...
  3. 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...
  4. 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....
  5. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 140, PPOST8

    Bio-intensive integrated management of budworm, Helicoverpa armigera in FCV tobacco

    SITARAMAIAH S.; GUNNESWARA RAO S.; RAMAPRASAD G.; SREEDHAR U.
    Central Tobacco Research Institute (CTRI), Rajahmundry (A.P.) India
    Tobacco budworm, Helicoverpa armigera , is one of the limiting factors in successful production of Flue Cured Virginia (FCV) tobacco in Andhra Pradesh, India. It infests the crop during the grand growth period and inflicts severe damage to the bud...
  6. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 97, A9

    Lowering the nicotine content of flue-cured tobacco cultivars in South Africa

    VAN TONDER C.S.M.; KRUGER J.; DIPPENAAR M.C.
    Tobacco and Cotton Research Institute, Soil and Crop Science Division, Rustenburg, South Africa
    The nicotine content of flue-cured tobacco produced in the RSA is determined by factors suchas soil fertility, climatic conditions and production practices. The nicotine content of the leaf cannot be reduced dramatically without a detrimental effect...