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. Another very important reason of this is due to unplanned use of water due to which a significant amount of water goes waste. For this purpose; we use this automatic plant irrigation system. In this project we use solar energy which is used to operate the irrigation pump. This project is designed to water plants regularly. The circuit comprises of sensor parts built using op-amp IC LM358. Op-amp’s are configured here as a comparator. Two stiff copper wires are inserted in the soil to sense whether the soil is wet or dry.
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