一种为山地丘陵地区发展高产高效农业展示了光明前景的地下农业开发——土洞栽培双孢菇技术,经过近两年的开发实验,目前已在临朐县迅速推广应用,全县已开挖土洞2400个。如何在缺少耕地的地区发展高产高效农业,缓解粮经争地矛盾,一直是围绕农业部门的一个难题。1995 A development of underground agriculture in light of mountainous areas with bright prospects for the development of high-yield and high-efficiency agriculture - Turf culture Agaricus bisporus technology, after nearly two years of development experiments, has been rapidly promoted in Linqu County, the county has been excavation of soil holes 2400. How to develop high-yield and high-efficiency agriculture in areas lacking cultivated land and alleviating the contradictions in the war on grain and by the economy has always been a difficult problem for the agricultural sector. 1995