There are different factors to impact producing technical efficiency in main grain producing area;
②三种粮食作物的生产技术效率所受影响因素不同；
Huangfan Plain was the main grain-producing area ten century ago.
公元九、十世纪以前还是我国粮食生产的主要基地。
The main grain-producing area is the main body of China agriculture production, especially of grain producing.
粮食主产区是我国农业生产尤其是粮食生产的主体。
Yuncheng basin is the main grain and cotton producing area of Shanxi Province.
运城盆地是山西省的主要粮棉产区。
Henan province is the major grain producing area of China, as well as one of main traditional flower producing areas.
摘要河南省是我国重要的粮食主产省，也是我国重要的花卉传统生产区域之一。
In addition, in main grain-producing area of northeast China, many peasants sell corn produces at three special times, leading to the "three sale fastigiums" in which the corn price are low.
另外，东北粮食主产区粮农销售过程中存在“三大销售高峰期”的现象，许多农户在高峰期低价销售。
In addition, in main grain-producing area of northeast China, many peasants sell corn produces at three special times, leading to the "three sale fastigiums" in which the corn price are low.
另外，东北粮食主产区粮农销售过程中存在“三大销售高峰期”的现象，许多农户在高峰期低价销售。
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