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| CND, here is a link to some good info on streamer bars.
http://www.needhamag.com/innovative_product_sales/stream_bars_for_u...
I am not sure where you are located, your soils or your yield goal, so making specific N recommendations is difficult. With that said, most, if not all of my clients to split their N on winter wheat. This practice reduces losses, improves standability and offers better potential of judging plant health to make a more accurate total N rate recommendation. Its another pass across the field I recognize, but with +/- $10.00 wheat and +/- 60c N, the pass works out to be one of the most cost effective decisions for the season.
Regarding the total rates applied with stream bars, I have guys that apply from 20lb to as much as 120lb/ac of N in liquid form in one pass - depending on the region, the split N ratio and wheat yield potential. Many sprayers are limited by pump capacity, especially when applying single shots of N to 100 bu/ac+ wheat.
You asked about pressure, I recommend 20-50psi pressure ranges with stream bars, if you go much higher than 50psi, you can get leaf scorch similar to what guys get with 3/5 hole nozzles - which is not good.
Here is a link to a handout which accompanied a presentation I gave at the NTOTP conference this past February. It discusses N rates in more detail.
http://www.needhamag.com/documents/needham_spring_nitrogen_manageme...
Phil N
www.needhamag.com
Edited by Phil N 3/22/2008 11:05
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Stream Bars?
