Abstract
Taking Sunjiacha Town, Shenmu City, Shaanxi Province as an example, the nutrient characteristics and physical and chemical properties of soil samples were studied and analysed. The results showed that the soil pH of X001 sample was the lowest, 7.7, and the total salt content of X002 sample was the highest, which was 1.3 g.kg-, while that of X008 sample was the highest, which was 32.85 mg.kg-. The highest content of soil organic matter was 84.3 mg kg-, the highest content of total nitrogen was 1.75 g kg-, the highest content of available phosphorus was 7.4 mg kg-, and the highest content of available potassium was 103 mg kg-. According to the National Classification Table of Soil Nutrient Content, the soil texture in the study area is sandy, pH is alkaline, available phosphorus and available potassium are deficient or extremely deficient. Except for the rich organic matter and total nitrogen in the black clay layer, the organic matter and total nitrogen in other layers are extremely deficient.
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