黄淮及北部冬麦区:该区包括河北、山东、河南、江苏北部、安徽北部、山西中南部以及陕西关中地区,种植制度以小麦玉米一年两熟为主,小麦10月上中旬播种,5月底至6月上中旬收获。影响小麦生产的主要因素是水资源短缺、干旱、冻害、干热风等自然灾害频发,条锈病、纹枯病、白粉病、赤霉病为害较重。长江中下游冬麦区:该区包括江苏和安徽两省淮河以南、湖北以及河南信阳市,种植制度以水稻小麦一年两熟为主,小麦10月下旬至11月中旬播 Huanghuai and northern winter wheat area: The area includes Hebei, Shandong, Henan, northern Jiangsu, northern Anhui, central and southern Shanxi and Shaanxi Guanzhong area. The planting system mainly focuses on two crops of wheat and corn in one year, May end to mid-June harvest. The main factors that affect the wheat production are the shortage of water resources, frequent natural disasters such as drought, frost damage and hot and dry wind, stripe rust, sheath blight, powdery mildew and scab. Winter wheat in the middle and lower reaches of the Yangtze River: This area includes Jiangsu and Anhui provinces south of the Huaihe River, Hubei and Henan Xinyang City, planting system of rice and wheat twice a year, wheat from late October to mid-November broadcast