Spatial-temporal variation of soil nutrients and evaluation of cultivated land quality in Xincun Township,Shanghai
Based on high-density sampling data,the spatial-temporal variation characteristics and influencing factors of soil nutrients such as organic matter,hydrolyzed nitrogen,available phosphorus,and available potassium in Xincun Township,Chongming District were analyzed.The results showed that the average content of organic matter,hydrolyzed nitrogen,available phosphorus,and available potassium in the soil of Xincun Township was 19.1 g/kg,100.6 mg/kg,14.0 mg/kg,and 136.6 mg/kg,respectively.The soil organic matter content and available phosphorus content were relatively low.Only 2.8％of the soil had an organic matter content greater than 30 g/kg,while 23.3％of the phosphorus deficient soil had an available phosphorus content between 5-10 mg/kg.There were significant differences in the spatial-temporal variation of soil nutrients at different locations.To effectively promote the green production of high-quality rice and soil health in Xincun Township,it was recommended to promote technologies such as green manure rotation fallow,precise nutrient management,and rhizosphere soil regulation,in order to achieve high-quality agricultural development in Xincun Township.
Xincun TownshipSoil nutrientsEvaluation of cultivated land fertilitySpatial-temporal variationGreen production
万方数据
维普
