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陕县地处豫西崤山中,具有烤烟生产较优越的自然生态条件和社会经济条件,但也存在一定的自然限制因素。七十年代,这里种植烤烟常因早春少雨、气温回升慢,影响烟叶大田前期烟苗速生早发,8、9月份又多遇阴雨天气,不利烟株上部叶片成熟采收和烘烤,限制了烟叶产量质量和效益的提高。1975到1981年七年间,全县烟叶亩平均产量一直徘徊在80公斤左右,最高年份1977年亩产也仅有112.6公斤。上中等烟所占比例最高水平55.2%,最低49.1%。烟硷含量低者
Shanxian County is located in Dangshan of West Henan Province, which has the superior ecological and social and economic conditions for flue-cured tobacco production. However, there are also some natural limiting factors. In the seventies, the planting of flue-cured tobacco here often due to lack of early spring, the temperature rise slowly, affecting tobacco leaf early premature fast-growing tobacco seedlings, 8,9 months and more rainy weather, adverse tobacco leaves the upper leaves mature harvesting and baking, limiting Flue-cured tobacco production quality and efficiency improvement. During the seven years from 1975 to 1981, the average output of mu of tobacco in the whole county has been hovering around 80 kilograms, with the highest in 1977 only 112.6 kilograms per mu. The highest level of middle-class tobacco accounted for 55.2%, the lowest 49.1%. Nicotine low content