METHOD OF CONTROL OF RADIATION ENERGY SAVING MODE AT SUPPLEMENTARY LIGHTING OF PLANTS Russian patent published in 2010 - IPC A01G7/00 A01G9/20 

FIELD: agriculture.

SUBSTANCE: in the process the flow of optical radiation of normalised is formed for the given crop plant intensity and duration. The spectral parametres of the flow are created that affect the plants by combined effect of several light sources of different specters. At that in preliminary experiments different ratios of one deal of one of the light sources in the general flow are imposed. Values of combination coefficient of sources flows in the general flow are calculated for the given ratios according to the formula , where Φ_A, Φ_B are respectively flows from sources A and B; the spectral fraction of the overall flow is calculated according to the formula where , are respectively the deals of flows in the i-th spectral ranges of sources A and B. Values of energy consumption are calculated by the formula , where are normalised values for the irradiated crops. The functional dependence of the energy consumption from the flow combination coefficient rate ε_µ=f(µ) is determined. Radiation regime is set at the value of the combination coefficient of flows, as corresponding to a minimum on the obtained functional dependence by changing the deal of flows from used light sources that form irradiance at the site of growing plants.

EFFECT: method provides energy savings at the regulation of radiation mode.

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