FIELD: agriculture. SUBSTANCE: greenhouse has multi-tier rack hydroponic installations with troughs for cultural solution, optical radiation sources and ground cells displacement limiters. Each trough of greenhouse hydroponic block has cylindrical rack with cells with ground arranged over inner perimeter of block. Ground cells displacement limiter is perforated and tightly fits the cells, thus fixing them in rack. Outer housing encloses the rack on outer diameter with clearance. Rack is lowered into trough and is rotated around its axle on which optical radiation source is located. EFFECT: enlarged operating capabilities. 6 cl, 4 dwg
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