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EC Nebraska | Dribbling seems to get to the corn seed just fine. A few years ago we tried dribbling 0-0-32 and 10-34-0 early post plant on some high pH eroded clay slopes. I'm not certain on the amounts, but it was something like 40 gallons UAN and 15 gallons APP. I think there were a few gallons of thiosul in there too. It's the only time the corn came up with no visible phos deficiencies. It may have helped that we finished in the rain, polyphos will move in the soil pretty well.
It was a pain to do, so I've also tried broadcasting 100 lbs MAP with various timings. Just don't seem to get a visual response from MAP like we did from APP. Hopefully we can try the liquid again this year, on those slopes it seems to work the best.
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