The present disclosure is related to a liquid conveyance nozzle and a hydroponics system comprising the liquid conveyance nozzle. The liquid conveyance nozzle is a hollow body and comprises a through hole, wherein the liquid conveyance nozzle has a variant inside diameter, a portion of the liquid conveyance nozzle having the minimized diameter is defined as a reduced diameter portion, and the through hole is disposed at the reduced diameter portion. Since the liquid conveyance nozzle comprises the through hole disposed at the reduced diameter portion, it is sufficient to generate suction negative pressure and to inhale air from the through hole while supplying liquid flow, as well as to reverse Stevins Law (communicating vessels principle) and to keep the supplied liquid from flowing back to the supply tank.
