耕地土壤pH测定方法比较研究  

Comparing pH determination in cultivated land soil

作　　者：黄翔 陈钢 洪娟[1,2] 杜雷 程维舜[1] 王素萍 罗茜 张贵友 姜利 张利红 HUANG Xiang;CHEN Gang;HONG Juan;DU Lei;CHENG Wei-shun;WANG Su-ping;LUO Xi;ZHANG Gui-you;JIANG Li;ZHANG Li-hong(Wuhan Academy of Agricultural Sciences,Wuhan 430345,China;Huazhong Agricultural University,Wuhan 430070,China)

机构地区：[1]武汉市农业科学院,武汉430345 [2]华中农业大学,武汉430070

出　　处：《湖北农业科学》2021年第19期106-109,共4页Hubei Agricultural Sciences

基　　金：湖北省重大项目(2018ABA099);武汉市农业农村局项目;武汉市农业科学院创新项目(CXJSFW202107-1)。

摘　　要：土壤酸碱性(pH)是土壤理化性质重要的指标之一,对种植土壤所含的养分形态以及有效性具有重要影响。选取5种不同用途的耕地,分别采用国际和国内标准测定pH,并研究了影响测定结果的因素和2种标准之间的差异。结果表明,pH测定主要受水土比的影响,振荡时间和过滤对测定结果无显著影响;2个标准之间具有良好的相关性,且浸提液经过滤后,测试液大部分处于澄清状态,仪器测试稳定时间缩短,重复性好。Soil acidity(pH)is one of the most important indexes of soil physical and chemical properties,which has an important ef⁃fect on the nutrient form and availability of planting soil.In this research,international and national standards were used to measure soil pH in five cultivated land soils and the influencing factors were studied.We also discussed their difference between international and national standards.The results showed that the pH value was mainly affected by the ratio of soil and water,and the oscillation time and filtration had no significant effect on the determination results.There was a good correlation between the two standards.In addi⁃tion,most of the test liquid was in a clear state after filtration,the stability time of the instrument test shortened,and the repeatability well.

关 键 词：PH 耕地类型 方法比较 影响因素 

分 类 号：S151.9[农业科学—土壤学]