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Northern Nebraska | He is doing university and state funded research that will be published this year. He has no agenda he actually farms besides working for the University and resource district.
Maybe the difference is that almost nobody applies pre plant nitrogen here. As you said it disappears. 90% of N is applied either at planting or post plant pre emerge. The remaining 10 still use anhydrous which is almost always applied in the fall. I don't care what form of N someone uses. If they apply it so it won't leach away.
As for the Lime neutralization of different N forms. My text looks must be out of date because. My fertilizer books still show uan being 10-15% less acid at the same nitrogen value due to the nitrate portion not having free hydrogen. 10% over decades adds up.
Edited by Hilltop Husker 4/29/2025 07:25
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Anhydrous vs Urea- soil health - short term/long term ?
