Abstract:

The spatial distribution characteristics of the representative tobacco-growing soil nutrients in Nanping areas were studied based on the status of the contents of the main nutrients and the platform of GIS, GPS and GS, and then the regional evaluation was made out. The results showed that the average contents of soil organic matter, total nitrogen, alkali-hydrolyzable nitrogen, phosphorus and available phosphorus were respectively 25.97 g/kg, 1.61 g/kg, 146.05 mg/kg, 0.57 g/kg and 28.80 mg/kg; the area, in which the content was above medium respectively accounted for 56.34%, 61.56%, 48.99%, 65.36% and 82.12% of the total cultivated area. The average contents of total and available potassium were respectively 16.34 g/kg and 90.02 mg/kg; the area, in which the content was above lower (besides the rich region) respectively accounted for 72.26% and 58.90%. Total phosphorus, available potassium and available phosphorus could be divided into three type regions, and others just two.