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引言磁县位于河北省最南端的漳河北岸,属于黄淮海流域夏玉米种植核心区。全县主要粮食作物种植模式为小麦玉米一年两熟制。2013年,全县玉米平均亩产达到502.2kg,而中国农科院作物所(李少昆教授)在新疆创建了夏玉米亩产1 511.74kg的全国高产纪录。近些年来,为使玉米产量再上新台阶,农技推广机构不断创新农技推广服务方式,认真分析玉米产业现状、问题及对策,围绕夏玉米亩产超吨(1 000kg)高产
Introduction Cixian County is located in the northern tip of Zhanghe River in the southernmost part of Hebei Province and belongs to the core area of summer maize cultivation in Huang-Huai-Hai River Valley. The county’s main food crop planting patterns of wheat and corn two crops a year. In 2013, the average yield of corn in the entire county reached 502.2kg, while the crop institute of China Academy of Agricultural Sciences (Professor Li Shao-kun) created a record high yield of 1 511.74kg per mu in summer maize in Xinjiang. In recent years, in order to make corn production to a new level, agricultural extension agencies continue to innovate agricultural extension services and carefully analyze the status quo, problems and countermeasures of the corn industry. Focusing on the yield per hectare of summer maize (1 000 kg)