沛县位于江苏北部，苏、鲁、豫、皖４省交界处，东临微山湖，西靠大沙河。土壤有沙土、黏土、两合土。常年种植冬小麦４万多hm２。前茬有水稻、玉米、花生、大豆、蔬菜等。随着小麦生产水平的不断提高，免耕、浅旋耕种植面积的不断扩大以及多年使用同类除草剂，致使本县麦田杂 Peixian is located in northern Jiangsu, Jiangsu, Shandong, Henan, Anhui 4 junction, east Weishan Lake, west of Dasha. Soil with sand, clay, two combined soil. Annual planting more than 40,000 hm2 winter wheat. Before the crop has rice, corn, peanuts, soybeans, vegetables and so on. With the continuous improvement of wheat production level, no-tillage, shallow tillage growing area and the use of similar herbicide for many years, resulting in the county wheat field miscellaneous