@article {10.3844/ajabssp.2014.44.54, article_type = {journal}, title = {THE IMPACT OF THE POLYMER COATING NUTRISPHERE™ IN INCREASING NITROGEN USE EFFICIENCY AND CORN YIELD}, author = {Heiniger, Ronnie W. and Smith, Timothy A. and Wiatrak, Pawel}, volume = {9}, year = {2013}, month = {Dec}, pages = {44-54}, doi = {10.3844/ajabssp.2014.44.54}, url = {https://thescipub.com/abstract/ajabssp.2014.44.54}, abstract = {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}, journal = {American Journal of Agricultural and Biological Sciences}, publisher = {Science Publications} }