Investigation on the effect of broomrape infection and mycorrhizal inoculants on mineral composition of oriental tobacco

The influence of broomrape infection and microbial inoculants (Rhizo-Vam Basic®, Mycoplant® Funky Fungi®) on the mineral composition oriental tobacco was studied in a pot experiment. Eight treatments were tested, distributed following four groups: (1) control; (2) treatment with infection; (3) mycorrhizal (4) broomrape+mycorrhizal inoculants. Broomrape reduced dry weight leaves by 31.4% compared to control. A tendency towards decrease concentrations essential nutritional elements – P, K, Zn Cu, more pronounced increase Ca Mg infected found. Nutrient removal also reduced, especially removing phosphorus, zinc copper. Microbial containing arbuscular fungi increased content nitrogen, available phosphorus potassium soil. Application inoculants, most cases, concentration - 18.2%-22.7% This associated an improvement N (+1.1%-13.5%), K (+4.3%-32.2%), (+9.8%-21.1%) inoculated plants. Mycorrhizal did not prevent biomass reduction broomrape-infected plants, but partially losses. application inoculant completely nutrient plants broomrape, it improved balance had positive effect nitrogen nutrition.