Abstract: An electrochemical cell has a first electrode inserted into growth media (soil) and a second electrode inserted into a plant at a position above the ground. The first electrode is coupled to the second electrode to form a potential difference therebetween. An injector has charged fluorescent colorants therein. The injector injects the charged fluorescent colorants into plant above the ground and the potential difference drives the charged fluorescent colorants through a portion of the plant that is above the ground. The potential difference can be formed through a galvanic cell, with an external power supply, and/or a solar panel or cell.

Abstract: A working electrode is inserted into the plant to monitor the health of the plant components or to detect physical, mechanical damage or environmental change in the soil or atmosphere. A standard electrode is inserted into soil surrounding the plant or in the plant itself. A data logger connects the working electrode and the standard electrode. The data logger measures the potential difference between the working electrode and the electrolyte to provide the ability to compare a measured potential difference with a predetermined critical potential difference for the plant. A second electrochemical cell can inject electrons and ions into the plant. The plant can be used as a sensor to monitor the environmental change in the soil or in the atmosphere.

Abstract: An electrochemical cell has an active alloy anode including an active alloy and a passive alloy cathode including a passive alloy with the active alloy having a higher reduction potential than the passive alloy within growth media. The active alloy anode and the passive alloy cathode are positioned to drive a plurality of transport ions into a plant in some embodiments to enhance plant growth and to kill weeds in other embodiments.

Abstract: A working electrode is inserted into the plant to monitor the health of the plant components or to detect physical, mechanical damage or environmental change in the soil or atmosphere. A standard electrode is inserted into soil surrounding the plant or in the plant itself. A data logger connects the working electrode and the standard electrode. The data logger measures the potential difference between the working electrode and the electrolyte to provide the ability to compare a measured potential difference with a predetermined critical potential difference for the plant. A second electrochemical cell can inject electrons and ions into the plant. The plant can be used as a sensor to monitor the environmental change in the soil or in the atmosphere.