利用日光温室休闲期养殖革胡子鲶蒋火金，戴世晨河北省永清县自１９９２年开始大面积发展冬暖式高效节能日光温室，到１９９４年，已发展到１．５万亩。三年来，在县政府的精心组织下，经广大农业科技人员的细心指导，产量一年比一年高，经济效益一年好上一年，１９９４年... Leisure use of solar greenhouse Gramineae catfish Jiang Huojin, Dai Shichen Yongmeng County, Hebei Province since 1992, large-scale development of winter warm energy-efficient solar greenhouse, by 1994, has grown to 15,000 mu. In the past three years, under the careful organization of the county government, with the careful guidance of the broad masses of agricultural science and technology personnel, the output has been rising year by year and the economic benefits have been on a good year last year. In 1994,