Current status and changing trend of soil nutrient in farming land in Xiapu

Soil physiochemical properties of the farming land in Xiapu were analyzed. The results showed that the pH value was 5.2, appearing to be acid; the organic matter content was 32.34 g/kg with high level; the alkali-hydrolyzable N content was 94.11 mg/kg, which appeared to be insufficient; available P content was 19.20 mg/kg with middle level; the available K content was 75.95 mg/kg, being insufficient level; the contents of total N, total P and total K were respectively 1.07 g/kg, 0.68 g/kg, and 24.53 g/kg, which were all middle level. Compared with the results of the second soil general investigation, the soil of farming land in Xiapu were severe acidification, the contents of organic matter, total N, total P and available P and total K were all increased to some distance, but the content of available K were decreased.