Automatic Detection of Soil Moisture and Water Supply

The green city is the broadest economic sector and plays important role in the overall economic development of a nation. Technological advancement in the area of agriculture will ascertain to increase the competence of certain farming activities.in this paper we have proposed a novel methodology for smart plantation by linking a smart sensing system and smart irrigator system through wireless communication technology. Our system focuses on measurement of physical parameter such as soil moisture content, plant health status (live or dead), temperature that plays vital role in plant activities. An automatic irrigation control system has been designed to facilitate the automatic supply of adequate of water from a reservoir to field or domestic crops in all agricultural seasons. One of the objectives of this work is to see how human control could be removed from irrigation and also to optimize the use of water in the process. The method employed is to continuously monitor the soil moisture level to decide whether irrigation is needed, and how much water is needed in the soil. A pumping mechanism is used to deliver the needed amount of water to the soil. The work can be grouped into four subsystems namely; power supply, sensing unit, control unit and pumping subsystems which make up the automatic irrigation control system.