Project: Development of a new steering algorithm for full-automatic and plant-dependent irrigation control based on simulated water tension in the plant

2005-01-01 – 2006-12-31

Abstract

Plant-dependent irrigation control is the process by which a correct amount of water is supplied to the plants at optimal points in time, based on biosensor measurements. A newly developed water transport model allows the calculation of water potential values (water tension demand for water) from 'on-line' measurements of sap flow and stem diameter fluctuations. The steering algorithm will continuously compare these water potential values with the critical threshold value to determine the starting point of the irrigation. By integrating the course of sap flow between 2 periods of irrigation the amount of irrigation water will be determined.