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8 results

  1. Bull. Spec. CORESTA Congress, Yokohama, 1996, p. 147, APOST9

    Chemical control of lateral suckers in Virginia tobacco, using new contact substances and reduced rates of maleic hydrazide

    COVARELLI G.
    Istituto di Agronomia Generale, Perugia, Italy.
    A field study was carried out from 1994 to 1995 in Central Italy to evaluate the efficacy of butralin, a newly introduced chemical for the control of lateral suckers in tobacco. Furthermore, the possibility of reducing the usage rate of Maleic Hydrazide ...
  2. Bull. Spec. CORESTA Congress, Jerez de la Frontera, 1992, p. 70, AP24, ISSN.0525-6240

    Competition between barnyardgrass (Echinochloa crus-galli L. Beauv.) and Virginia tobacco : effects on growth, nitrogen uptake and yield

    TEI F.; COVARELLI G.
    Istituto di Agronomia Generale, Perugia, Italy.
    Barnyardgrass (Echinochloa crus-galli L. Beauv.) is one of the most important annual grass weeds in Virginia tobacco in Italy. This study was designed to research the effect of the duration of competition on growth, nitrogen uptake and crop yield. ...