FIELD: agriculture.
SUBSTANCE: in plant for calibration and pre-planting treatment of onion, namely in cylindrical shielding housing located at inclination to horizontal plane, sectional cylindrical perforated resonator of non-ferromagnetic material without bases is coaxially installed. Receiving capacity with shutter and magnetrons of microwave generators are fixed on outer side of one housing base. To the other base of the housing from the outside, generators of kHz frequency are attached, from which there supplied are crushed electrogas-discharge lamps installed on the inner side of the base radially with an adjustable gap. Inverted truncated pyramidal resonators of non-ferromagnetic material without bases are connected to the side surface of the resonator for each section of the resonator, which contain dampers instead of bases of small diameter. On outer side to side surface of each truncated pyramid resonator magnetrons of microwave generators are attached.
EFFECT: invention provides high efficiency of onion pre-sowing treatment.
1 cl, 6 dwg
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