FIELD: agriculture.
SUBSTANCE: invention relates to agriculture. Unit consists of working solution, pump, pipeline. Each nutrient solution, reservoir for which is installed on strain gages, is connected directly to a programmable dosing pump along a line independent of each other. Circulating pump is connected to the working vessel according to the scheme ensuring thorough washing of its inner walls and the bottom with the circulating liquid.
EFFECT: providing preparation of portions of solutions with different components and changing composition depending on cultivated culture.
1 cl, 1 dwg
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