内蒙古自治区大青山北部(俗称后山地区,东起多伦西至固阳县)广大农区传统上实行压青休闲耕作制。所谓压青休闲,是指在一块土地上连续种植一定年限后,休闲一年,并在休闲地上进行耕翻,即黑色休闲。由于耕翻次数不同,分一犁压青、二犁压青 The northern part of the Daqingshan Mountains in the Inner Mongolia Autonomous Region (commonly known as the Houshan area and from Toronto to Guyang County in the east) has traditionally adopted a system of slash-and-plowing farming. The so-called pressure green leisure, refers to a piece of land for a certain period of continuous planting, leisure year, and in the fallow ground farming, that is black leisure. As a result of different plowing times, plow a green, two plow pressure green