小麦叶片数目与茎节相等。正常播种条件下多为11－13片。小麦要获高产，除要有合理的叶面积系数外，还必须具备合理的群体结构以及理想的株型。因此，应在适时播种，施足基肥，保苗壮苗基础上，科学采用“促前、中控、后补”的原则因苗因田管理。一、群体结构。小麦要求年内苗3 The number of wheat leaves is equal to the number of stems. Under normal sowing conditions, mostly 11-13 tablets. To obtain high yield of wheat, in addition to a reasonable leaf area coefficient, but also must have a reasonable population structure and the ideal plant type. Therefore, should be timely sowing, Shizujifei, Bao Miao Zhuang Miao, based on the scientific use of “advance, control, after the fill,” the principle of Miao Yin because of management. First, the group structure. Wheat year seedlings 3