景东烟区生态因素与烤烟质量特点分析

为了探讨景东烟区生态因素与烤烟质量之间的关系,主要对云南景东烟区的植烟气候因素、土壤养分状况以及所产烤烟的质量特点进行了分析。结果表明:景东烟区具有无霜期长,大田期气温适宜,光照充足,降雨充沛,雨热同步等特点;植烟土壤pH值适宜,有机质含量较丰富,具有较强的保肥能力,土壤碱解氮含量高,速效磷、钾含量适中;交换镁含量较高,速效锌、硼含量缺乏。烤烟外观质量较好,香气量较足、香气质较好,燃烧性强,但在化学成分间的协调性方面不及津巴布韦烤烟。

Analysis of Ecological Factors and Quality of Flue-cured Tobacco Leaves in Jingdong Tobacco-growing Areas

To investigate the relationship between ecological factors and the tobacco quality in Jingdong, Yunnan province, basic conditions for tobacco growing areas, meteorological factors, status of soil nutrients and quality of tobacco leaves were analyzed. The result indicated that Jingdong tobacco-growing areas had a long frost-free period, suitable temperature, abundant rainfall, sufficient sunlight, while the rainfall and heat had the same changes, and other meteorological factors. The pH of the tobacco-growing soil was appropriate, the organic material was rich, and it had strong ability to maintenance of soil fertility,the content of available nitrogen were high, available phosphorus and available potassium were suitable, the contents of exchangeable magnesium were high, but the available zinc and Boron content was low, The appearance quality of the most samples were good, mostly samples had full aroma qua1ity,the fragrance was good, combustibility was strong, the level of the coordination of the chemical composition in tobacco leaves in Jingdong was lower than Zimbabwe.