Some commercial soil testing laboratories offer Haney Soil Health Test and provide corresponding fertilizer recommendations. Some growers have asked how these relate to Mehlich-3 extraction. This publication provides finding on studies conducted to (i) investigate the relationship between HSHT’s H3A-4 and Mehlich-3 extractable nutrient elements and (ii) compare the P2O5 and K2O fertilizer recommendations by University of Tennessee and Haney Soil Health Test from a commercial laboratory.