Enhanced efficiency fertilizers have historically been used in the Southeastern U.S. for high value horticultural, vegetable and turf crops.� However, increasing fertilizer expenses and relatively stagnate commodity prices are causing producers to consider these technologies for agricultural crops.� The farmers' goals are to improve fertilizer use efficiency and reduce the overall need for fertilizers, but the added cost must be offset by either an increase in yield or a reduction in overall fertilizer need.� Several commercially available products have been designed to improve efficiency by either preventing fertilizer loss or increasing uptake.� For nitrogen, urease and nitrification inhibitors have been used successfully for many years.� Recently, a low priced polymer coated urea (ESN^�, Agrium Int.) with a release curve similar to N uptake in corn has been made available.� Research results show that corn and wheat yields can be increased as a result of using this product when soil conditions are favorable for both denitrification and volatilization losses.� For phosphorus, a high charge density polymer (Avail^�, Specialty Fertilizer Products) has been show to reduce P fixation and increase yield of rice and soybeans.� Other products and application techniques such as foliar fertilizers have not demonstrated consistent economic benefits.� When used appropriately, enhanced efficiency fertilizer products can improve the profitability of production agriculture.���