推广旱作农业技术和种植模式是促进干旱和半干旱地区农业生产发展、农民脱贫致富的一条有效途径。从１９８３年开始，地处冀西北山区的赤城县，年平均降水量仅４２５mm（毫米），全县８０％是旱地，属于典型的雨养农业，十年九旱的自然条件和传统的农业种植模式，十几年来，本 Popularizing dry farming techniques and planting patterns is an effective way to promote the development of agricultural production in arid and semi-arid areas and to help farmers get out of poverty. Since 1983, the county is located in Chicheng County, a mountainous area in the northwest of Hebei Province. Its average annual rainfall is only 425mm (millimeters). 80% of the county’s dry land belongs to rainfed agriculture. The natural conditions of 10 years of drought and the traditional agricultural planting Mode, more than a decade, Ben