Plant growth assembly comprising a nutrient dosing system

A plant growth assembly comprising:

• at least one growth enclosure for housing plants, and
• at least one nutrient dosing system fluidly connected to the at least one growth enclosure, the nutrient dosing system, comprising:
• a mixing tank for receiving a solvent and at least one nutrient medium;
• at least one dosing device, each dosing device being fluidly connected to the mixing tank, each dosing device comprising:
• a nutrient tank for storing a nutrient medium;
• a pump having an inlet port fluidly connected to the corresponding nutrient tank, and an outlet port fluidly connected to the mixing tank;
• and
• an actuator configured to actuate the pump;
• a controller,
• wherein, for each dosing device, the pump is a reciprocating pump for providing a pushing force through a positive displacement of the reciprocating pump,
• wherein the mixing tank is fluidly connected to a nutrient solution storing tank configured for storing at least one nutrient solution,
• wherein the nutrient dosing system, comprises at least one sensor configured to output a measurement signal representing at least:
• an electroconductivity of the nutrient solution in the nutrient solution storing tank;
• and
• whether a free surface of the nutrient solution in the nutrient solution storing tank is below a predetermined trigger level,
• wherein the controller is configured to, for at least one dosing device and based on the measurement signal, control the respective actuator to cause the corresponding pump to:
• load the nutrient medium from the corresponding nutrient tank;
• and
• inject a target amount of nutrient medium into the mixing tank
• so as to obtain a concentrated nutrient solution;
• and
• transfer the concentrated nutrient solution to the nutrient solution storing tank,
• wherein the growth enclosure comprises nozzles arranged to pulverize, on said plants, the nutrient solution stored in the nutrient solution storing tank,
• wherein the nutrient solution storing tank is arranged at a bottom of the growth enclosure to recuperate the nutrient solution sprayed on the plants by the nozzles above the nutrient solution storing tank but not absorbed by the plants.