Abstract
The content of nitrogen, phosphorus, potassium and organic matter in soil is an important index to determine soil nutrient status. In this paper, the contents of nitrogen, phosphorus, potassium, organic matter and soil salt in the soil of several different plant communities in the campus were measured by the chemical measurement characteristics of several different communities in University of Jinan. The differences in the measurement characteristics of soil chemical measurement in different plant communities were analyzed. The results showed that the highest organic matter content in several communities was Cherry Blossom community, 76.33mg/kg, and the highest ammonium nitrogen content was 196.08mg/kg; the highest content of available phosphorus was the community of Begonia, 168.14mg/kg, and the highest content of available potassium was the community of Robinia pseudoacacia, which was the highest salt content in 64.99mg/kg soil. The community of cherry blossoms is 569 μs. There was little difference in soil organic matter, available phosphorus and available potassium in different plant communities..
Highlights
Soil is the mechanical support and material foundation for plant growth, and its fertility directly reflects the ability of land to provide nutrients for plant growth
3.1 Organic matter Organic matter content is an important basis for judging soil fertility, and the important index for evaluating soil quality is the basis for determining soil fertility
The results showed that the content of organic matter in the soil of these communities was less
Summary
Soil is the mechanical support and material foundation for plant growth, and its fertility directly reflects the ability of land to provide nutrients for plant growth. The contents of nitrogen, phosphorus, potassium and organic matter in soil are important indexes for determining soil nutrient status[1]. The content of organic matter directly affects the physical and chemical properties and physiological activities of the soil, and it is the decisive factor to reflect the soil fertility and the characteristics of supplying fertilizer[2]. A large number of elements such as nitrogen, phosphorus and potassium are indispensable for plant growth and development. The amount of crops required for these elements varies greatly, they are important for crop growth and development and must not be substituted for each other. Studying the differences in the chemical measurement characteristics of several different communities in the main campus of University of Jinan could better understand the nutrient components of various soil in the campus, and provide reference for the landscaping and beautifying of the campus
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