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我国的植烟面积和总产量均占世界第一,由于我国烤烟烟叶质量差(色泽不正、香气不足、吃味差、尼石丁含量低、还原糖含量高),在国际市场上没有应有的地位。 国内外生产实践表明,烤烟质量的好坏受土壤环境及施肥影响很大,1985～1988年中科院南京土壤研究所受智利化学矿业公司和中国烟草总公司委托,率先开展了这方面的系统研究。几年来在我国8个省市主要烟区布置了大量定位观察点和一系列田间小区试验,在所内进行了模拟和温室盆栽等深入研究。共分析烟叶样3.17万项次,土壤样品3460多项次,获得了大量科研数据。
China’s tobacco plantation area and total output both account for the highest in the world. Due to the poor quality of our flue-cured tobacco leaves (lack of color, lack of aroma, poor taste, low content of nesidin and high content of reducing sugars), there is not enough in the international market Position. Domestic and foreign production practices show that the quality of flue-cured tobacco is greatly affected by the soil environment and fertilization. From 1985 to 1988, Nanjing Institute of Soil Science, CAS commissioned by Chilean Chemical Mining Corporation and China National Tobacco Corporation, took the lead in carrying out a systematic study in this field. Over the past few years in our country eight provinces and cities in the main tobacco smoke area layout of a large number of observation points and a series of field trials, in-house simulation and greenhouse pots and other in-depth study. A total of 31 700 leaf samples and 3460 soil samples were analyzed, and a large amount of scientific research data were obtained.