Airborne Videography to Identify Spatial Plant Growth Variability for Grain Sorghum

摘要: Much research has focused on the use of intensive grid soil sampling and yield monitors to identify within-field spatial variability in precision farming. This paper reports airborne videography plant growth patterns for grain sorghum. Color-infrared (CIR) digital video images were acquired from two sorghum fields south Texas several times during 1995 1996 growing seasons. The registered, classified into zones homogeneous spectral response using an unsupervised classification procedure. Ground truthing was performed upon a limited number sites within each zone determine density, height, leaf area index, biomass, yield. Results both years showed that imagery identified maps effectively differentiated production levels conditions fields. A temporal comparison indicated differed somewhat between successive seasons, though areas exhibiting consistently high or low field.