hi am i sahithi i would lke know how the authomatic water supply monitoring control system circuit diagram

Improving irrigation efficiency can contribute greatly
to reducing production costs of vegetables, making the
industry more competitive and sustainable. Through proper
irrigation, average vegetable yields can be maintained (or
increased) while minimizing environmental impacts caused
by excess applied water and subsequent agrichemical
leaching. Recent technological advances have made soil
water sensors available for efficient and automatic operation
of irrigation systems. Automatic soil water sensor-based
irrigation seeks to maintain a desired soil water range in the
root zone that is optimal for plant growth. The target soil
water status is usually set in terms of soil tension or matric
potential (expressed in kPa or cbar, 1 kPa=1 cbar), or
volumetric moisture (expressed in percent of water volume
in a volume of undisturbed soil). Another benefit of automatic
irrigation techniques is convenience. In a previous
experience working with a soil-moisture-based automatic
irrigation system, Dukes et al. (2003) found that once such
a system is set up and verified, only weekly observation
was required. This type of system adapts the amount of
water applied according to plant needs and actual weather
conditions throughout the season. This translates not only
into convenience for the manager but into substantial water
savings compared to irrigation management based on
average historical weather conditions.