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对敦煌市8个乡(镇)具有代表性的4 002个耕层土壤样品进行了养分测定。结果表明,土壤有机质含量平均为9.57 g/kg,全氮含量平均为0.58 g/kg,碱解氮含量平均为33.48 mg/kg;全磷含量平均为0.71 g/kg,速效磷含量平均为11.96 mg/kg;全钾含量平均为19.21 g/kg,速效钾含量平均为112.86 mg/kg。总体表现为有机质、全氮、碱解氮含量低,全磷、速效磷含量较低,全钾、速效钾含量中等。
Nutrients of 4 002 topsoil samples representative of 8 townships (towns) in Dunhuang City were measured. The results showed that the average content of soil organic matter was 9.57 g / kg, the average total nitrogen content was 0.58 g / kg, the content of alkaline hydrolysis nitrogen was 33.48 mg / kg, the average total phosphorus content was 0.71 g / kg, the average content of available phosphorus was 11.96 mg / kg; the average total potassium content was 19.21 g / kg, the average available potassium content was 112.86 mg / kg. The overall performance of organic matter, total nitrogen, low content of alkaline hydrolysis nitrogen, total phosphorus, available phosphorus content is low, total potassium, available potassium content medium.