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Fluid Journal : Fluid Journal 2008-2009
at the V6 growth stage. Also note the improved efficiency of P uptake with the addition of the 6-18-6 at 3 gal/A in-furrow. More for less Yield results from 12 different starter fertilizer trials in 2007 (replicated and on-farm side by sides) averaged a yield increase of 5.4 bu/A when Avail® was added, showing the additive may be one option of increasing fertilizer efficiency. Yield results from 27 different starter fertilizer trials in 2008 (replicated and on-farm sides by sides) averaged a yield increase of 5.2 bu/A when the same polymer was added. It may also provide more opportunity to look at starters with a N:P ratio of 2:1. For example, if the additive can maintain P levels in the plant, a blend of two-third UAN (28%) and one-third 10-34-0 can help growers deal with tight supplies of 10-34-0 and high costs without sacrificing crop yield. Missy Bauer is a field agronomist, The Andersons, Maumee, OH.
Fluid Journal 2005-2007