Evaluation of Agxplore Nzone Max Nitrogen Aid in Corn.

NZone Max (AgXplore International, Parma, MO) with CrossLink Technology  is a nitrogen (N) aid with the following proposed advantages: increased N availability and uptake, reduced N loss, flexible in regards to application practices and weather conditions, and user- and environmentally-friendly (non-corrosive and no detrimental effects on soil). The study's objective was to access potential benefits of NZone Max in corn for improving N use efficiency and grain production. The field experiment was established in the spring of 2016 at University of Idaho (UI) Parma Research & Extension Center. Corn (var 3499VT3P/RIB) was seeded at 86,450 plants ha^-1 seeding rate into 4.5 x 18.3 m plots. One week after planting, 4 fertilizer treatments (2 N rates treated or untreated with NZone Max) replicated 4 times were applied to research plots. Based on preplant soil test results, N fertilizer was applied as granular urea (46-0-0) to achieve a target rate of 308 kg ha^-1 for 100% rate and 231 kg ha^-1 for 75% rate. At maturity, by-plot corn grain yield was determined. The effect of N fertilizer rate and NZone Max treatment on corn grain yield was evaluated.