河南农业大学韩锦峰教授1982年考察加拿大的烤烟生产时,引进了蜂窝育苗技术。用塑料格盘进行大棚育苗,使烟苗生产效率与传统方法相比提高了4—5倍。即传统育苗每亩地可育出40—50亩烟田用苗,而采用塑料大棚覆盖下的格盘育苗,每亩大 Professor Han Jinfeng of Henan Agricultural University investigated the production of flue-cured tobacco in Canada in 1982 and introduced honeycomb seedling-raising technology. With plastic grid greenhouse nursery, tobacco production efficiency increased by 4-5 times compared with the traditional method. That is, traditional nursery stock can be raised 40-50 acres of tobacco with seedlings per acre, and the plastic greenhouse covered under the grid nursery, large acre