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  1. Bull. Spec. CORESTA Congress, Yokohama, 1996, p. 124, A17

    Agrobiological indices used to express the fertility state of the soils where tobacco is grown

    PAUNESCU A.D.; STEFANIC G.; PAUNESCU M.
    Academy of Agricultural and Forestry Sciences, Bucharest, Rumania.
    The authors define fertility as "The fundamental characteristic of the soil, which is a result of the vital activity of the micropopulation, of the plants roots, of the accumulated enzymes and from the chemical processes which generate biomass, humus ...