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中国农学通报

中国农学通报 ›› 2016, Vol. 32 ›› Issue (7): 135-139.doi: 10.11924/j.issn.1000-6850.casb15080120

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

2种检测方法对土壤中氮、磷、钾测定结果的相关性对比研究

苏伟波,杨张青,张玉民   

  1. 河南农大迅捷测试技术有限公司,河南农大迅捷测试技术有限公司,河南农大迅捷测试技术有限公司
  • 收稿日期:2015-08-24 修回日期:2015-10-10 接受日期:2015-10-23 出版日期:2016-03-18 发布日期:2016-03-18
  • 通讯作者: 苏伟波
  • 基金资助:
    郑州市技术研究与开发产学研结合项目“便携式快速测土配方施肥技术集成系统的研制”(0911SCXY00494)；河南省财政厅2012 特色产业中小企业发展资金“快速测土推荐施肥系统集成中试与转化”（豫财企[2012]145 号）；郑州市科技型中小企业技术创新资金项目“反射式植株营养与叶绿素诊断两用仪”（郑科技[2014]4 号）；金水区产学研合作促进计划“激光诱导击穿光谱平台构建及快速检测郑州周边地区土壤重金属污染研究”（金科[2014]33 号）。

Comparative Study on the Correlation of Two Detection Methods for Soil N, P and K

  • Received:2015-08-24 Revised:2015-10-10 Accepted:2015-10-23 Online:2016-03-18 Published:2016-03-18

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摘要： 为了解决土壤个性化施肥问题，笔者分别采用了速测和常规2 种方法测定了10 个北方土壤样品中的氮、磷、钾含量。试验结果表明：速测法和常规法有很好的相关性，相关系数均达到0.966以上，尤其是钾的相关性达到0.99，均达到极显著水平。并建立了相应的回归曲线方程，在实际工作可利用速测结果通过相应的回归方程进行换算，折算出常规法检测的含量，指导配方施肥。该速测方法具有简单快速便捷之特点，试剂成品化，不需要实验人员自配药剂，仪器操作简便，不需要专业的实验人员操作，检测成本低，便与基层人员推广使用。

关键词: 气候变化, 气候变化, Mann-Kendall突变检验, 陕西省

Abstract: In order to solve the problem of soil personalized fertilizer application, the authors tested N, P and K content from 10 soil samples in northern China by fast testing method and conventional method. The results showed that both of the two methods had fine correlation, and the correlation indexes reached 0.966, especially the correlation index of K reached 0.99, which also showed significant differences. Curve regression equation was set up, which could be used in fast conversion to get the content of conventional method to guide fertilization. The fast testing method was fast and convenient, there was no need for the staff to prepare the reagent, the instrument could be operated easily without the involvement of professional experimenter and had low cost for detection, it could be widely used by grassroots technical staff.