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一、材料与方法1、试验地养分状况：前作玉米，黄沙埃土，养分含量，碱解氮21mg／kg，速效磷11．1mg／kg，有机质1．33g／kg，土壤PH值8．1。2、材料：小麦专用肥合N22％、P2O513％、K2O5％，含Zn、B、Mn等微量元素。区农资专用化肥厂生产、提供。尿素含N46．3％，新疆石化总厂
I. Materials and methods 1. Nutrient status of the experiment: Before corn, yellow sand soil, nutrient content, alkali hydrolysis nitrogen 21mg / kg, available phosphorus 11.1mg / kg, organic matter 1.33g / kg, soil pH value 8. 1.2, material: wheat special fertilizer combined N22%, P2O513%, K2O5%, with Zn, B, Mn and other trace elements. District agricultural fertilizer plant production, to provide. Urea containing N46.3%, Xinjiang Petrochemical Plant