MANAGEMENT OF UREA-CONTAINING FERTILIZERS FOR NO-TILLAGE CORN USING NITROGEN STABILIZERS AND COATED-GRANULE TECHNOLOGY

摘要: No-tillage production systems are being used by an increasing number of producers in the Great Plains, however, large amount surface residue left on soil can made nitrogen (N) management difficult. There several products currently available for use with granular urea (46% N) and urea-ammonium nitrate solution (UAN) that have ability to reduce or eliminated N losses. The objective this study was evaluate effectiveness N-fertilizer additives a slow-release polymer coated product no-tillage corn (Zea mays L.) system. A 3-year field experiment conducted from 2006–2008 at North Central Kansas Experiment Field, located near Scandia, KS, Crete silt loam (fine, montmorillonitic, mesic Pachic Arquistoll). When averaged over 3-years experiment, treated fertilizer yielded greater than untreated UAN. This occurred regardless applied N-rate. additive along time rel...