内蒙古阴山北麓是一个以低山丘陵为主的典型旱作农业区，缓坡耕地占总耕地面积的 80％以上。由于种植方式和种植制度不合理，造成坡耕地水土流失十分严重，多数耕地的土壤退化到了荒漠化的边缘。在中国农业大学提出的修筑田埂、定向耕翻的等高耕作技术基础上，内蒙古农业厅土肥 The northern foot of Yinshan in Inner Mongolia is a typical dry farming area dominated by hilly areas. Gentle slope farmland accounts for more than 80% of the total cultivated area. Due to the irrational planting methods and planting system, soil erosion on sloping farmland is very serious, and the soil of most cultivated land has been degenerated to the edge of desertification. On the basis of the contour cultivation techniques proposed by China Agricultural University for the construction of fields and tillage, the Fertilizer of Inner Mongolia Agriculture Department