Li-cor, Inc.

Gregory L Biggs

Tanvir Demetriades-Shah

Kyle H Holland

David L Franzen

Jonathan M Welles

Kevin Ediger

John H Wurm

John Rada

James S Schepers

Tracey M Blackmer

A method of detecting the condition of a turf grass is described. According to one aspect of the invention, the method comprises steps of attaching an active sensor to a mower; traversing a section of turf grass; and processing the output of the sensor. A device for detecting the condition of turf grass is also disclosed. The device comprises an array of illuminating devices generating a pattern of illuminating light; a detecting device receiving a pattern of reflected light which is coincident with the pattern of illuminating light; a detecting device adapted to detect stray light from the array of illuminating devices; and a feedback loop controlling the array of illuminating devices. A system employing the device is also disclosed.

Sensor and method of detecting the condition of a turf grass

Method and apparatus for real-time determination and application of nitrogen fertilizer using rapid, non-destructive crop canopy measurements

Growing community of inventors

Lincoln, NE, United States of America

Gregory L Biggs