潍坊市是全国几个烤烟集中产区之一,进入七十年代以来,面积一直稳定在70万亩左右,分布10个县区,171处乡、镇,4658个大队,53766个植烟户,纵观近十几年的烤烟生产,全市平均物价及上中等烟比例逐年上升,但烟叶内在品质徘徊不前,究其原因,很重要的一条是种植品种多乱杂,不少单位长期种植高产劣质品种。为了加速我市烤烟品种更新换代,彻底改变品种布局,我们从1980年起,进行了品种区域试验。并于1983年和中国农科院烟草 Weifang City is one of the several concentrated tobacco producing areas in the country. Since entering the seventies, the area has been stable at about 700,000 mu with 10 counties and districts, 171 townships and 4658 brigades, 53,766 tobacco-growing households, Throughout the last decade of flue-cured tobacco production, the average price of the city and the proportion of upper middle-grade tobacco increased year by year, but the internal quality of tobacco stagnated, the reason is very important one is the planting of more variety and mixed, many long-term high-yielding units Poor varieties. In order to speed up the replacement of flue-cured tobacco varieties in our city and completely change the variety distribution, we have conducted regional trials of varieties since 1980. And in 1983 and the Chinese Academy of Agricultural Sciences tobacco