Systematic Study On Soil Nutrient And Establishment Of Fertilization Index Of Karamay

Greenland soil is a medium of green plant and a basis of the entire Greenland ecosystem. Greenland can produce such a great environment and aesthetic value to a large extent on its soil quality. Soil nutrient status is an important indicator of soil quality and is a measure of plant physiological. In recent years, Karamay Greenland has been greater development. The area of Residential Quarter, urban road and afforested lands have been expanding,. The plant diversity of green garden increasing,, and made new demands to the green garden soil nutrient managementSpatial variation of soil nutrients is the basic of soil nutrient supply capacity and fertilizer management of Greenland soil. In order to build the scientific and reasonable management of Greenland soil and fertilizer application, we need to research on the green garden soil spatial distribution of nutritional status, dynamics and the balance of relations between the plant community gardens soil nutritional needs and soil nutrient supply capacity .In this study we use classical statistics, partial correlation analysis and cluster to analysis the soil nutrient supply capacity and needs of the plant nutrition of different types of plant disposition of Karamay. According to the relations between the plant community gardens Soil nutritional needs and soil nutrient supply capacity, we make the standard of soil fertility of Karamay.The main research process and conclusions are as following:1.Through the relevant analysis, the study area has 83.93 percent of the sample was in N stress state, 71.43 percent of the sample was in P stress state, 87.50 percent of the sample was in K stress state.2. According to the cluster analysis of all plants nitrogen, phosphorus and potassium, the results showed that the shrubs+herbs&trees+herbs, trees+shrubs&trees&trees+shrubs+herbs, herbs have similar requirements on fertilization.3. According to the fertilization need of the plant and spatial variation of soil nutrients, we can made the soil optimal fertilization mode of different types of green garden plants.Type of shrubs+herbs&trees+herbs,need nitrogen,phosphorus,potassium 45-90kg/hm2;type of trees+shrubs&trees&trees+shrubs+herbs need nitrogen 60-120 kg/hm2, phosphorus 30-60 kg/hm2, potassium 30-60 kg/hm2;type of herbs need nitrogen 60-120 kg/hm2, phosphorus 30-60 kg/hm2, potassium 60-120 kg/hm2.The main creative points:Based on the soil fertility status in different types of Greenland,garden green for a comprehensive quantitative grade, suitable for the Karamay in soil fertility classification standards. Use the cluster analysis methods to analysis the green garden soil fertility and the leaves nutritional of the main garden plants, and confirmed by a similar plant disposition can be configured using the same type of soil and fertilizer management. In the Fertilization technical specifications, we improve the qualitative of the quantitative description of nitrogen, phosphorus and potassium fertilizer application of the specific amount and optimize the existing urban landscape of green fertilization.