Yeeeaa! I haven't been able to log on for a year or two. Must be the new exchanges, but I have been a faithful reader. Depleted soils is what I want to write about. When I was in ag school many years ago I remember looking at pictures of plants with macro and micro nutrient deficiencies and they would show up in weird leaf patterns. I think it was lead deficiency that showed a checkerboard patten; phosphorus left purple streaks. Once we tested the soil before planting corn and found a low zinc level and we amended the soil. Farmers want good yields and crops do not grow well in poor soils. I don't think worrying about soil nutrient depletion is warranted. After all record yields are not too uncommon these days. But I left ag 15 years ago for the kindergarten classroom. View Thread
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