Method and apparatus for determining the rate of sap-content variation in living plants, and relating that to soil water tension, and transmitting the collected information

摘要

Methods and apparatuses are described for the measurement of sap content variation using one or more metallic probes inserted through the external surface into the underlying sap-carrying layers of the plant, connected to a Device using a Micro-controller and an algorithm to create and report an electrical signal, and, and in another embodiment measuring and relating sap content to soil water tension using such Device, that reads such multiple sensor types, and in another embodiment configuring the Device to transport such sensor and relative information via wide area or wireless methods.