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Nevada, Iowa | The thread below has aroused mt curiosity. I don't keep up like I should but I had assumed that there was not much accuracy in soil nitrate testing. This is based on junk at the back of my brain from 30 years ago. It seemed like even the late spring nitrate test came under some scrutiny when it was introduced a number of years ago. Have testing methods or processes changed enough to make them reliable? | |
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