Ecological Suitability Evaluation Of Tobacco Planting In Luzhou Of Sichuan

As one of the main economic crops in China and all over the country to vigorously promote the tobacco planting,but due to differences in climate,soil condition,geological landform environment,the cultivation of tobacco ecological suitability are also different,even among different varieties,there are also differences in different ecological environment adaptability.It is necessary to evaluate the ecological suitability of tobacco planting in Luzhou area as a big city.The ecological suitability of tobacco planting in Luzhou area was evaluated by the determination of physical and chemical parameters,meteorological data and topographic features of different areas in Luzhou.At the same time,in order to study the differences between varieties,selection of Yunyan 85,Yunyan 87,Yunyan 97,Yunyan 99,Yunyan 105 field experiments were carried out,through the difference between varieties yield and quality were evaluated for their ecological adaptability.The results showed that the Luzhou region was generally suitable for tobacco cultivation.The specific sequence of ecological suitability of each region is south,West,East and North.Gulin County and Xuyong County of south Luzhou are most suitable for tobacco planting.Specific to each index: The soil suitability of tobacco is the south,West,East and north in turn.From climate suitability,is East,South,West and north in turn.The terrain suitability of each area is south,West,North and east in turn.Specific to the difference between the yield and quality of different varieties,Yunyan 99 exists obvious advantages in all index,the ecological adaptability is the strongest.With the ecological suitability finding in tobacco planting,should pay more attention to temperature environment,water environment,soil fertility factors and climate factors,by means of agricultural technology to achieve water,fertilizer and temperature insulation,combined with ecological monitoring to strengthen pest control.In addition,we should pay attention to the breeding of fine varieties,improve the ecological adaptability of tobacco in Luzhou.