Paul, here's the spreadsheet I made to compare reduced rate precision placed planter "N" to our current rate of pre-plant NH3 application. My plan would be to either pull a 500 gallon poly tank behind the planter or Saddle tanks on the tractor. I'll also add some Ammonium Thiosulfate to the UAN. But, I'm not sure I'll go 100% N with the planter. Just do away with the pre-plant pass. Bill Moyer's posts the last couple days support my thinking that there a place for Foliar applied "Snake Oil" N products. I just think the window to apply those products is narrow. Micro-Management of the corn crop is a must. That's another post. Edit in: If you decide to download the spreadsheet. The columns in gray are the ones to input your own figures into.
Edited by Dan_wcIN 9/25/2008 11:53
Attachments
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 Nitrogen with planter Rates.xls (24KB - 118 downloads)
Nitrogen with planter Rates.pdf (4KB - 105 downloads)
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no-till corn on corn
