Abstract
The effects of electromagnetic and electrostatic fields on tomato plants (in potted and hydroponic culture) were investigated. The broad-band, noisy character continuous spectrum electromagnetic field (with an intensity from 20 to 500 V/m, frequency from 1 Hz to 30 MHz) and electrostatic field (with an intensity of 2,2 to 46,5 kV/m) used in the experiments stimulated the tomato yield, height and biomass of plants. The differences in the character of the electromagnetic and electrostatic fields were reflected in the various optimal intensities for tomato yield. height and biomass of plants. Characteristic reactions of tomato plants to the electrostatic and electromagnetic fields were also found. The electromagnetic field had a greater effect on tomato yield in the case of plants cultivated in post in comparison with plants cultivated in hydroponic cultures. Electromagnetic and electrostatic fields with specific parameters may be used for growth stimulation of plants cultivated in greenhouse.
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