As an amorphous resin, it has a good dimensional accuracy when forming and is not significantly changed by external deformation. Therefore, it performs well in dimensional accuracy and stability and is suitable for precision forming.
Industry application
1.Smart card industry
2.Digital printing industry
3.Optical film industry
4.The car industry
advertising Film,,Screen printing film,Advertising inkjet film,Water-based Reverse Print Backlit Film Guangzhou Quanxu Technology Co Ltd , https://www.skychema.com
The influence of different soil types and soil types may lead to differences in soil nutrient content. Therefore, based on different soil types, the effect of different land use patterns on soil nutrients was determined by using a soil nutrient fastness meter. The soil types studied include purple soil, loess soil, red soil and so on. For example, Zhang Hong et al studied the effects of different land use methods on soil quality and soil physical and chemical properties of purple soil. Wang Shuqi et al studied the effects of four fertilization methods such as non-fertilizer, NPK, NPK, straw, NPK fertilizer, and organic fertilizer on N, P, K and other nutrients in soil.
The effects of different farming methods on soil nutrients are also included in the research areas of scholars, such as fertilization methods, farming methods, and management methods. In terms of fertilization methods, Liang Tao analyzed the differences in N and P losses from soils under four land use types, including fertilized maize and non-fertilized vegetable land; Song and Chung compared the land use of non-fertilized arable land, chemical fertilizer arable land, and organic fertilizer arable land. Phosphorus fertility characteristics under the mode; in terms of farming methods, it mainly involves leisure, rotation and intercropping. Chen Fu and others chose land use methods such as recreational land and rotation land, and studied the effects of different land use types on soil properties; Wang Xiaolong et al. explored nutrient loss characteristics of soil N and P under five land use patterns such as peanut-citrus intercropping.
The statistical and quantitative analysis methods combined with the application of soil nutrient fastness meter to study the effects of different land use methods on soil nutrients, mainly to analyze the differences in soil nutrient content between different land use methods. Therefore, statistical analysis methods such as comparative analysis, variance analysis, and variance analysis are mostly used in the research process. The comparative analysis is mainly used to compare the difference in soil nutrients between different land-use methods, between different soil layers, between different years, or between different regions. It is most widely used and can be found in almost all existing studies.
Soil nutrients are the result of a combination of natural and human factors. Land use is a comprehensive reflection of natural conditions and human activities. Soil nutrients are closely related to land use. Changes in land use patterns often lead to changes in the physical and chemical properties of the soil and can also cause changes in soil nutrients. In recent years, a large number of studies have been conducted on soil nutrient fastness meters in response to the effects of different land use types on soil nutrients. From the aspects of research content, research area, research methods and means, this paper summarizes the domestic research status of the effects of different land-use methods on soil nutrients, summarizes existing problems in the existing research, and points out the focus of future research.