介休地处晋中区之南部，与晋中平川各县相比，由于气温偏高，蒸发较多，干旱更趋严重。尤其是春末夏初正是当地的多风季节，加之雨季来迟，初夏旱年份占２７％，故干热风历来严重影响当地小麦生产。通过调察研究，不断找出防御对策对实现小麦稳产有十分重要的意义。１小麦年度 Jiexiu is located in the southern part of Jinzhong District, compared with counties in Jinzhong Hirakawa, due to high temperatures and more evaporation, the drought is more serious. Especially at the beginning of spring and early summer, it is the windy season in the area. In addition to the late rainy season, the dry summer months accounted for 27% of the total dry season, so dry-hot winds have had a serious impact on the local wheat production. Through investigating and researching, it is very important to constantly find out the defensive measures to stabilize wheat. 1 wheat year