Mineral nutrition of plum trees as important factor of protection against plum pox virus disease
1998
Kralovic, J. | Kralova, V. (Slovak Academy of Sciences, Ivanka pri Dunaji (Slovak Republic). Institute of Experimental Phytopathology and Entomology)
The experimental results obtained from a fruit-garden Krajne pointed out the different content of macrobiopgenic elements in the leaves of plum trees infected with plum pox virus as compared to healthy ones. Mineral nutrition of diseased trees was characteristic by lower relational values of topical levels of macrobiogenic elements especially those of nitrogen and phosphorus (N/P), nitrogen and potassium (N/K), calcium plus magnesium and potassium (Ca + Mg)/K and finally (N/P)/(N/K)
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