Construction properties of different soil profile constitutions in black soil of corn belt in Jilin were systemically studied.

以吉林省中部玉米带黑土为供试土壤，研究了黑土不同剖面构型的结构特性。

youdao

Northeast China is an important corn production area, "the three golden corn belt" is located in Jilin province.

东北三省是我国重要的玉米生产基地，“三大玉米黄金带”就位于吉林省。

youdao