Evaluation on Main Nutrient Status of the Soil Planting Flue-cured Tobacco at Qianxi County in Guizhou

Based on the analyse data from 332 soil samples (4 years) of planting Flue-cured tobacco, the result indicated that over 80% of the soil is yellow at Qianxi county, the others are purple soil and lime soil. The pH of over 70% soil is fit for growth of flue-cured tobacco. The organic matter content of 51.2% soil is fitting for planting flue-cured tobacco but over the suitable level in lime soil. The soil with suitable content of available N is about 77.11%. The available P content covers the range from the lower to more abundant, while the 31% soil stands the lower. In the soil, the available K content is correspondingly lower, the lower area is about 54.2%, the middle ones account for 39.2%. According to the status, it is suggested that controlling organic manures, adjusting phosphorus, and increasing Potassium should be adopted.