HOTHOUSE Russian patent published in 1997 - IPC

FIELD: agriculture; devices for soilless growing of plants in growth medium, particularly hydroponic hothouses. SUBSTANCE: the hothouse has multistage hydroponic structures for plant growing containers 5 positioned one above the other to form vertical multistage technological channels accommodating servicing members. In the working zones the multistage hydroponic structures are interconnected by floors 6. The servicing members in the hothouse are arranged in staggered order in every second stage in the technological channels and are fastened on suspensions 8 each of them being secured on live axle 9 the ends of which are connected with electric drives 10. After a photoperiod is finished the servicing members are moved to the adjacent stage and are switched on for a preset exposure. EFFECT: provision of optimum conditions for soilless hydroponic plant growing. 3 cl, 3 dwg