TY  - JOUR
AU  - Heiniger, Ronnie W. 
AU  - Smith, Timothy A. 
AU  - Wiatrak, Pawel 
PY  - 2013
TI  - THE IMPACT OF THE POLYMER COATING NUTRISPHERE™ IN INCREASING NITROGEN USE EFFICIENCY AND CORN YIELD
JF  - American Journal of Agricultural and Biological Sciences
VL  - 9
IS  - 1
DO  - 10.3844/ajabssp.2014.44.54
UR  - https://thescipub.com/abstract/ajabssp.2014.44.54
AB  - Currently, it is estimated that 50 to 60% of the N applied fertilizer is actually utilized by the crop with the remaining N lost through leaching or denitrification. A three year study was conducted at eight locations in North Carolina to examine the impact of Nutrisphere™ on corn yield, optimum N rate, maximum yield, tissue N concentration, plant biomass and N uptake. At six locations the study consisted of a split plot design where main plots were either 30% Urea Ammonium Nitrate (UAN) or 30% UAN plus Nutrisphere™ applied either at planting or layby with subplots consisting of five N rates that differed slightly across years. At two locations, two N solutions were applied at two rates to plots that received one of two starter fertilizer treatments. The overall trend indicated that Nutrisphere™ increased yield compared to the use of 30% UAN alone with a significant (p