HOTHOUSE NUTRIENT SOLUTION PREPARATION AND DELIVERY SYSTEM Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: system comprises a temperature-control unit, a solution mixing container. containers for solution ingredients, pumps, solution delivery and drainage pipes, and solution concentration and temperature transmitters. The system has additionally a metering pump, a container for preliminary mixing of solution ingredients, and a purification unit. Solution container accommodates a level transmitter whose contact is cut into the drive control circuit on drain pipe connected to the container bottom. EFFECT: higher metering accuracy and ecological cleanness of solution. 2 dwg