土壤pH值与土壤因子灰色关联探讨  

Analysis on Grey Correlation between Soil pH Value and Soil Nutrients

作　　者：陈丹宁[1] 王继富[1] 

机构地区：[1]哈尔滨师范大学,黑龙江哈尔滨150025

出　　处：《土壤通报》2015年第1期117-120,共4页Chinese Journal of Soil Science

基　　金：国家自然科学基金项目(41071332);中国科学院知识创新工程重要方向项目(KSCX1-YW-09-13)资助

摘　　要：对于植物生长和发育来说,土壤养分是必要的营养物质,其有效性直接关系着植物发育情况、土壤肥力以及土壤生产力。土壤pH值对养分的有效性影响很大,为了研究其关联性,选用大庆市大同区四乡镇土壤作为样品,对样品的数据结果进行标准化处理,采用灰色关联法对土壤pH值与各土壤养分因子的关联性进行研究。结果表明,与pH值关联度最大的是有效氮,灰关联度为0.928。生产中应采取积极措施改善土壤酸碱度,合理施氮肥,以促进农作物更好地生长。Soil nutrient is necessary for plant growth and development, Its effectiveness is directly related with plant growth, soil fertility and soil productivity. Soil p H has a great influence on the effectiveness of the nutrients. In order to study their correlation, this research collected soil samples from four villages in Datong District, Daqing, and then standardized the analysis data. The relationships between soil p H value and soil nutrients were analyzed using the method of grey correlation. Soil p H value and available N showed the largest gray correlation value, 0.928. This result suggested that positive measures should be taken to improve soil p H value, reasonably apply nitrogen fertilizer, in order to promote crop development.

关 键 词：土壤PH值 土壤因子 数据处理 灰色关联 

分 类 号：S153.4[农业科学—土壤学]