What is NDVI? Normalized Difference Vegetation Index, or NDVI, is a color-coded representation of relative crop health in a field. How It Works: The GreenSeeker system creates NDVI data using optical sensors to measure and quantify crop health-or vigor. The sensor emits brief bursts of red and infrared light, and measures the amount and type of light that is reflected back from the plant. The strength of the detected light is a direct indicator of the health of the crop; the higher the reading, the healthier the plant. The quad-mounted sensor scan setting along with the spacing of quad passes creates about a 2.5 meter grid across the field. That is a lot of sample points and should be very representative of the area, picking up most variability. The sensor can be mounted on farm implements, ATV, or even carried by hand for more precision on smaller areas. Potential Uses of NDVI Data: Yield Estimation, Determine level of Chlorophyll, Plant health and stress level, Optimal fertilizer use, Nitrogen Management, Identify insects and pest in crop, Analyze plant disease, Plant or weed identification, Cultivation planning, Harvest planning according to vigor
Oral presentation and poster titles, abstracts, and authors from the Society for Range Management (SRM) Annual Meetings and Tradeshows, from 2013 forward.