Title: Corn grain yield and nutrient uptake from application of enhanced-efficiency nitrogen fertilizers Authors
Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: April 20, 2012
Publication Date: October 24, 2012
Citation: Sistani, K.R., Jn-Baptiste, M., Simmons, J.R. 2012. Corn grain yield and nutrient uptake from application of enhanced-efficiency nitrogen fertilizers. ASA-CSSA-SSSA Annual Meeting Abstracts. Abstract. Technical Abstract: Increasing demand for food and agricultural products directly impact the use of chemical fertilizers particularly nitrogen (N). This study examined corn grain yield and nutrient uptake resulting from applications of different N fertilizer sources, urea (U), urea-ammonium nitrate (UAN), ammonium nitrate (NH4NO3), poultry litter (PL), and commercially available enhanced-efficiency N fertilizers (EENF) as follow: polymer-coated urea (ESN®), SuperU®, UAN + AgrotainPlus®, and poultry litter + AgrotainPlus in a no-till corn (Zea mays L.) production system. Treatments were replicated four times from 2004 to 2007. Soil samples were taken annually in the spring prior to treatment application to evaluate the status of the residual nutrients in soil. There was no significant difference in corn grain yield among all N sources averaged over three years. However, small differences observed with regard to grain N uptake. Our results demonstrate that N fertilizer source and climate conditions need consideration when selecting N sources for corn production.