NE South Dakota Clark, SD | senodak - 1/27/2026 20:21
Long ago. Grid seemed kind of pointless. Nature doesn't work in nice little squares. If you have a hill and a slough in the same square - doesn't make much sense to sample a slough, sample a hill, mix them together and say that's the square.
I don't know of any agronomists that recommend grid over zone testing.
Grid testing was the very first methodology used for soil testing. As satellite imagery became more available, just about everyone has gone to zones for obvious reasons. You can make your zones nice little 1 acre squares if you wanted to, but it wouldn't make sense.
Grids still have relevance, but not as exactly the same linear distance between them as it was done in the old days. If you did mix the slough and the hilltop in the sample you are going to get bad answers. The grid square is just a guide for area. Pull the cores out of what represents the area the best and add more points were you have the rapid change. |
Anyone done any grid testing near Fargo area?
