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| 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. | |
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Anyone done any grid testing near Fargo area?
