党的十一届三中全会以来的二十年间，河北省的粮食生产基本实现了自给有余。同时，人们的膳食结构也发生了明显的变化，对粮食产品的内在质量提出了更高的要求。为此，如何进步发展优质粮食作物生产，已成为当前农业生产中值得关注的问题。优质粮食作物可依据其用途分为多种类 In the two decades since the Third Plenary Session of the 11th CPC Central Committee, food production in Hebei Province has basically achieved self-sufficiency. At the same time, people’s dietary structure has also undergone obvious changes, putting forward higher requirements on the intrinsic quality of food products. Therefore, how to improve the production of high-quality grain crops has become a concern in current agricultural production. High quality food crops can be divided into many categories based on their use