APPARATUS FOR WATER AND MINERAL NUTRITIVE FEEDING OF PLANTS Russian patent published in 1997 - IPC

FIELD: agriculture, in particular, hydroponic units for soil-free growing of green feed plants. SUBSTANCE: apparatus has transportation devices 3 positioned on shelves, growing containers 4 made from film material and mounted on transportation devices 3, solution supplying main pipeline 5 and metering container 7 connected to main pipeline 5. Metering container 7 has nutrient solution dose regulating members for supplying solution to one plant growing container 4. Metering container 7 is connected via valves 8 with solution distributors 9 for distributing solution among plant growing containers 4. Metering wall 11 is positioned at bordering zone of each growing container 4 to provide for guaranteed volume of solution for watering section. Solution discharge opening is positioned adjacent to wall 11. Length of solution distributor support 21 is equal to width of growing container section. Solution collector 25 with horizontal slot channel 26 positioned at the level of film covering is arranged at one side of growing container 4. Solution collector 25 is communicated via valve 27 with discharge branch pipe 28. Apparatus has mechanism for lifting and fixation of solution supplying channels above plant growing container 4. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 2 cl, 8 dwg