Minirhizotron data from Fertilization Experiment, Hog Island, VA, 1992

Minirhizotron data from fertilization experiment. On 36-year old dune ridge on Hog Island, VA. Data presented are a complete listing of all roots observed during the study period. See Weber, E. 1994. The effect of nitrogen fertilization on the phenology of roots in a barrier island sand dune community. 1994. M.S. Thesis, Old Dominion University for a full description of the data gathering protocol. There were 83 frames (18 mm x 13.5 mm) sampled for every tube. If a frame had no roots in it, then that frame on that date does not appear in this data set.