运城地区从1990年开始示范、推广小麦高茬秸秆还田技术,并根据水旱地生产特点,确定了两大主推模式。即水地高麦茬覆盖复播还田和旱地高麦茬机械切碎覆盖还田,1997年这两个模式推广面积达到370万亩。在1998年小麦遇到特大干旱的 Since 1990, the Yuncheng area has been demonstrating and promoting the technology of wheat stubble returning to straw, and according to the production characteristics of water and dry land, the two main push modes have been determined. That is, the water high stubble coverage of replanting and dry highland stubble mechanical shredding covered the field, in 1997 these two models to promote the area reached 370 million mu. In 1998, wheat was experiencing severe drought