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How much N lost after top dressing.
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Tech man
Posted 6/24/2019 11:15 (#7578964)
Subject: How much N lost after top dressing.


The desert of MN.
We got our top dressing done this last week without any rain. We spin on a blend of urea, esn and ams. All treated with a 1/2 rate of Factor (generic Agrotain). We had a small shower come through Friday and most of the fields got .2" at the most. I'm not worried about the ams or esn but over half of the blend is urea. I checked some fields Saturday when it was sunny and could not smell any ammonia but I could not see any of the urea laying on the ground any more. Last night most of the area got an inch of rain. Should I be worried about the trace to .2" rain on Friday volatizing some N ?
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