Winter spinach requires much.

摘要

Winter spinach cv. Clermont was sown in October 2003 at 2 locations in Germany. The crop was fertilized with 0-80 kg P2O5/ha, 0-30 kg Mg/ha, and 150 kg N/ha. Studies in 2004 and 2005 compared different N fertilizer rates (0-250 kg N/ha and 0-220 kg N/ha, respectively). Higher N rates resulted in higher yields. Winter spinach required more N fertilizer than spring and summer spinach..