“…in the soil (Prasad and Power, 1995;Trenkel, 1997). NIs have been used to increase yields and to reduce nitrate leaching in several crops (Malzer and Randall, 1985;Frye et al, 1989;Malzer et al, 1989;Walters and Malzer, 1990;Corré and Zwart, 1995;Davies and Williams, 1995;Martin et al, 1997;Trenkel, 1997;Ball-Coelho and Roy, 1999;Serna et al, 2000;Pasda et al, 2001;Díez-López et al, 2008;Li et al, 2008). A large number of chemicals have been reported as nitrification inhibitors, but only three of them are commercialized worldwide.…”