Abstract: In the field of agriculture, use of proper method of irrigation is important because the main reason is the lack of rains & scarcity of land reservoir water. The continuous extraction of water from earth is reducing the water level due to which lot of land is coming slowly in the zones of un-irrigated land. Another very important reason of this is the unplanned use of water due to which significant amount of water goes to waste. For this purpose; we use this automatic plant irrigation system. This system derives power from solar energy through photo-voltaic cells. Hence, dependency on erratic commercial power is not required.

Keywords: 8051 series Microcontroller, Solar Panel, MOSFET, Motor, Voltage Regulator.