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Keokuk Co, IA | It's been on a *slightly* outdated fertilizer plan for the last 40+ years: 100lbs map, 100lbs potash every other fall before corn with 210 units of fall nh3. Last fall was the first time we've ever had soil sampling done on our farm and you can see the results. This if from one field but all of our ground is very similar and has the same symptoms. Whole farm 2019 averages: 192 bu/ac corn and 54 bu/ac beans. | |
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soil test potassium recs
