恩施州烟叶生产区域划分及配套栽培技术措施研究

The Studies on Regional Partition of Tobacco Production in Enshi Prefecture and Corresponding Cultivation Techniques

分析了恩施烟区不同海拔高度气候和土壤等生态条件特点，采用“地貌＋土壤类型＋养分特点”的命名原则进行了区域定位：海拔500～800m区域为低山黄壤低钾中氮区，海拔800～1300m区域为中低山黄棕壤中钾中氮区，海拔1300～1500m区域为中高山黄棕壤一棕壤高钾高氮区．同时结合各区的生态条件特点，进行了烤烟和白肋炯配套栽培技术措施研究，为恩施州烟叶生产的可持续发展提供了技术支撑．

The characteristics of ecological condition including climate and soil under different altitudes were analyzed. The regional partition was denominated by applying the naming principle of ＂physiognomy ＋ the type of soil ＋ the characteristic of soil nutrients＂. The altitude ranging from 500 m to 800 m was named as the area of ＂low mountain ＋ yellow soil ＋ lower content of Potassium ＋ medium content of Nitrogen＂. The altitude ranging from 800m to 1 300 m was named as the area of ＂medium or low mountain ＋ yellow brown soil ＋ medium content of Potassium ＋ medium content of Nitrogen＂. The altitude ranging from 1 300 m to 1 500 m was named as the area of ＂medium or high mountain ＋ yellow brown soil or brown soil ＋ high content of Potassium ＋ high content of Nitrogen＂. Meanwhile, according to the characteristics of ecological condition of each area, the corresponding cultivation techniques of flue - cured tobacco and burley were studied. And these provided technical supports for sustainable development of tobacco production in Enshi Prefecture.