An apparatus for automatically controlling the irrigation and distribution of fertilisers into a plantation zone comprises two chambers 1, 2 that allows the flow of both fluids in variable proportions into a fluid mixer 7, with the resulting mixture used for irrigation of crops under the control of a solenoid valve 9 guided by a cyclical timer. The apparatus facilitates the automation of fertilization and irrigation of multiple crops having varying fertilization needs under a single water source and a single fertiliser source that can be distant from each other when connected into a system. The apparatus may include moisture sensors, sunlight or rain sensor and may be powered by solar energy 14. A system or method employing the afore described apparatus may be used in multiple irrigation zones.