陕354小麦超高产平衡施肥技术研究

田间和温室试验表明：在供试褐土上，氮、磷肥对陕３５４小麦具有明显的增产作用，增产效应为氮〉钾〉磷，初步发现钾肥有明显增产效应。此外，硫肥有增产作用，硫锌、硫锰或硫锌锰配施增产显著。试区小麦高产施肥中应注意中、微量元素的缺乏与补充问题，并应注意各种肥料的平衡施用。最佳施肥量为Ｎ２１７ｋｇ／ｈｍ＾２，Ｐ２Ｏ５，９９．１ｋｇ／ｈｍ＾２和Ｋ２Ｏ１０７．１ｋｇ／ｈｍ＾２ｍ，Ｎ：Ｐ２Ｏ５：Ｋ２Ｏ最佳配比为１：

Study on Fertilization Practices to Super-high Yielding Winter Wheat Variety Shaan354

Both field and greenhouse experiments show that nitrogen,phosphorus, potassium fertilizers all have the profoundly yield-increasing effect on wheat for tested soils in He''nan province,the magnitude order of yield-increasing effect is as follows;N>K>P.It is discovered initially that potassium fertilizer has profoundly yield-increasing effect on wheat in experimented region.Also, sulfur zinc and m anganese fertilizers have yield-increasing on wheat.Thus, potassium fertilizer also should be applied to winter wheat variety Shaan354,together with nitrogen and phosphorus fertilizers, attention should be paid to the deficiencies and replenish of sulfur zinc and manganese nutrients,and to the balanced fertilization of various fertilizers.