Quzhou county in Hebei province is located in the middle of Huang-huai-Hai plain. It is a typical agricultural region with higher input and higher yield.
河北省曲周县地处黄淮海平原中部，是典型的以粮、棉、油为主的集约化农区。
参考来源 - 华北集约化农区土地利用变化及其可持续评价·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
Jianyuan Emperor 4 years (137 years BC), when they buy in Quzhou County.
汉武帝建元4年(公元前137年)始置曲周县。
In ancient times there Phoenix brood nest in this beautiful story, therefore, also known as Phoenix, Quzhou County.
古时候有凤凰在此筑巢育雏的美丽传说，因此，曲周县城亦称凤凰城。
The nutrient balance in different kind of crops and cropping systems, as well as the nutrient input of different farmers were similar pattern with Quzhou county.
不同作物和种植制度的养分平衡情况及不同农户的养分投入情况与曲周县的整体情况大体一致。
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