A 200% difference between MLSN & SLAN

Research by Jackie Guevara at Michigan State University showed that there can be a big difference in fertilizer recommendations based on how your soil test results get interpreted, but those differences in fertilizer rate may not have any affect whatsoever on turfgrass performance. The final report on this project has now been published by Guevara et al., in Comparing the effects of soil test interpretations for P and K on a creeping bentgrass putting green.

Soil samples were taken from…