Analysis of the physical and chemical characteristics of Fujian tobacco-growing soils

The physical and chemical characteristics of 2266 soil samples from Fujian tobacco-growing fields were analyzed.Analyzed soil pH is 5.05,physical clay(＜0.01mm)content is 36.56%,organic matter is 22.99g/kg,total N is 1.52g/kg,hydrolytic N is 144.41mg/kg,total P is 0.52g/kg,available P is 28.41mg/kg,total K is 19.50g/kg,available K is 79.50mg/kg and slow-releasing K is 259.61mg/kg.pH,organic matter and total K of the soils are noted to be low and total P,available P and total N of some soils are higher than found in the Second National General Soil Analysis. Rational application of N and P,adjustment of soil acidity,application of K fertilization and organic fertilizer,and selection of suitable soil texture are noted to be crucial in the cultivation of tobacco in Fujian tobacco-growing areas.