Previous research has shown EEFs can provide agronomic and economic benefits for growers in some conditions, as well as environmental benefits from reduced N losses through run-off and leaching. Research has shown that EEFs can provide agronomic and economic benefits for growers in some conditions, as well as reduced nitrogen losses from run-off and leaching. In order to reap these benefits, EEFs must provide a sufficient source of nitrogen for sugarcane at lower rates than those currently recommended by the SIX EASY STEPS TM (6ES). The purpose of this project is to improve knowledge of when and where the use of EEFs in place of urea will reduce the amount of N lost through leaching and run-off and result in favorable economic benefits for growers. This will improve an understanding of the reductions in N loss..