当前黄淮海地区高产小麦生产中不合理施肥现象仍比较突出,部分地区过量施用氮肥,不仅不能进一步增产,还使得生产成本增加,施肥的经济效益下降,并可能造成潜在的环境问题。在栽培技术方面,农户采用的播种方式大多为传统平播的方式,这种播种方式播幅较窄,株距过小,易造成小麦个体竞争、发育不良、后期倒伏等问题。要在小麦高产基础 At present, irrational fertilization in high-yielding wheat in Huang-Huai-Hai region is still outstanding. Excessive application of nitrogen fertilizer in some areas not only can not further increase production, but also increases production costs and economic benefits of fertilization, which may lead to potential environmental problems. In terms of cultivation techniques, most of the sowing methods used by farmers are the traditional flat sowing methods. The sowing method is narrow in sowing width and the spacing between trees is too small, which may easily lead to problems such as individual competition, poor growth and late fall of wheat. To produce high-yield basis in wheat