Evaluation of Soil Nutrients of Tobacco-growing Areas in Midu County

In order to evaluate the main nutrients of tobacco-growing areas in Midu County, 116 soil samples of 8 townships collecting with GPS were analyzed. The results showed that: (1) Soil reaction in study area was mainly weak acid and neutrality with the ratio of 79.31%. (2) The average contents of soil organic matter (OM) were high level, however, about 7.76% of soil OM content were lower than the suitable level. (3) The contents of soil available nitrogen (AN), available phosphorus (AP) and available potassium (AK) were generally medium level. (4) The proportion of soil available boron and available molybdenum, which were lower than suitable level, were 45.69% and 64.66%, respectively. Each township had their distribution. (5) The proportion of suitable content level for soil water soluble chlorine was only 15.52%, the proportion of lower content and higher content was 59.48% and 25.00%, respectively. Soil available boron and available molybdenum were generally lack and the suitable proportion of soil water soluble chlorine was extremely low.