Observation and Analysis of Moisture Distribution in Rooting Zone

— Practical Assessment of Precision Irrigation Method Focus on Controlled Water-retention-zone —

Abstract

This paper is aiming at a new water saving technology in agricultural crop production, in which minimum water required for crop growth exist only in root zone. In this study, we confirmed the zone of water retention during the growth of plant through observations of plant growth and soil water retention. This paper reported the basic concepts and methodology of this technology which controls moisture only in root zone, and also reported the method to observe the soil water retention and plant growth while conducting this water saving technology. The results and knowledge obtained from the experiment were then discussed.