“SmartSamplingTM” is a procedure that utilizes zone management for soil sampling purposes. We studied soil samples and yield data to examine if there was a correlation. Results showed soil fertility as expressed by soil sample results and yield to correlate poorly. Considering the poor correlation, we examined the sample locations. The study showed 16 of the 30 samples collected were in areas that we considered “transition areas” between one soil type and another. Upon evaluating the 14 samples that were not located in “transition areas” we saw correlation between soil fertility and resulting yield increased by 100%. Our results suggest grid sample data is only partly reliable because of the random placement of sample points. From this we recognize the need to move to an approach which manages the different areas of a field according to their production potential. Welcome to Zone Management!
