Anxious about the rueful state of his peas, radishes and onions, Rod Marquardt arrived at the University of Minnesota’s soil testing laboratory with two lunch bag-sized containers of dirt. “We’re just ...
ST PAUL, Minn. — If you suspect that your soil is to blame for your yard's poor performance, all you need is a bag of it and a couple of dollars to get a detailed analysis from the University of ...
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