Abstract:

In order to fully find out the Nanping tobacco soil microelements and its evolution trend, scientific guidance tobacco balanced fertilization. Using Nanping plant smoke soil census data, analyzed the soil iron, manganese, copper, zinc, boron, chlorine nutrient status and evolution tendency, the result showed: the contents of Nanping plant smoke soil effective iron, copper, manganese and effective zinc, effective boron, water-soluble chlorine averaged (88.49±62.66) mg/kg, (26.11±19.08) mg/kg, (3.15±2.01) mg/kg, (2.55±1.42) mg/kg, (0.26±0.19) mg/kg, (20.22±17.22) mg/kg respectively. Various nutrients variation coefficient were more than 50%, belong to strong mutation. From the nutrient evolution tendency analysis, along with the kind of smoke fixed number of year for increased, soil of iron and manganese ability were tending to increased, and for copper, zinc, boron, chlorine ability was a trend to decrease. From the angle of soil conservation and high-quality tobacco production, we should attach importance to iron and manganese nutrition surplus and copper, zinc, boron, chlorine nutrition supply.