Vegetative manifestations of greenhouse tomatoes in the organic production
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Author: Stoyan Filipov, Kostadin Kostadinov, Krasimir Mihov, Violeta Valcheva
The influence of organic fertilization on the vegetative manifestations of green house tomatoes under the conditions of biological production was examined. The following biometric indicators were reported: fresh mass of the whole plant (g), volume of the root system (cm3); fresh mass of the root system (g); height of the stem (cm); diameter of the stem (mm); fresh mass of the stem (g); number of internodes (number); number of leaves (number); fresh mass of the leaves (g). The best vegetative characteristics for all the reported indicators was demonstrated by the combination of Lumbrikompost Orgamax + HRB + Softguard. In the phase of mass fruiting the excessover the control was by 14.42% for the height the stem, by 23.43% for the stem diameter, by 39.57% for the mass of the stem, by 17.65% for the number of the internodes, by 28.57% for the number of the leaves, by 39.50% for the mass of the leaves, by 150.00% for the volume of the roots and by 83.84% for the mass of the roots. Organically produced greenhouse tomatoes within high farming practices and a proper fertilization scheme form anequalor even greater leaf-stem vegetative mass than the conventionally grown. This is a prerequisite for a higher economic productivity of a higher fruit quality.