| mjr05 - 11/18/2025 22:48 You really want to be confused? Pull a sample, mix it up real good, send it to the lab as 3 different samples in 3 different bags, and get 3 completely different results. And if you send it to multiple labs, your results will probably vary even more. Different times of year, more variation. Different soil moistures, more variation. The more I learn about soil sampling, the more I'm beginning to think it's junk science. I don't have any answers to help you, but my faith in soil sampling is very low. Someone convince me otherwise.
Other than variable rate lime, I'm inclined to have the same faith. And I've been doing my own sampling for more than twenty years. Nothing makes me feel better or math better than building a spread map from yield map, at least I know some product is going to land where there was 240 bushel corn and not 24 bushel corn. |
Mass confusion on Ph, soil tests and fertility
