| 2种纳氏比色法检测土壤铵态氮的对比 |
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| 引用本文： | 苏伟波. 2种纳氏比色法检测土壤铵态氮的对比[J]. 中国农学通报, 2015, 31(15): 211-214. DOI: 10.11924/j.issn.1000-6850.casb15010159 |
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| 作者姓名： | 苏伟波 |
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| 作者单位： | 河南农大迅捷测试技术有限公司 |
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| 基金项目： | 郑州市技术研究与开发产学研结合项目(0911SCXY00494)；河南省财政厅2012特色产业中小企业发展资金 |
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| 摘 要： | 笔者对2种纳氏试剂比色方法检测土壤铵态氮进行了对比性试验，一种是常规的纳氏试剂比色法（常规法），一种是改进后的纳氏比色法（速测法），试验证明了速测法具有检测线性范围宽0~168mg/kg的优点，整个过程检测时间为25min，比常规法缩短一半；显色灵敏，显色稳定时间长，可稳定几小时以上；检测结果直接显示土壤中养分含量；操作方便快捷；成品试剂，不需要操作人员自配；检测成本低等优点。便携式速测仪及配套的检测方法满足基层测土配方施肥使用。
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| 关 键 词： | 土壤有机碳 土壤有机碳 空间变异特征 影响因素 动态变化 |
| 收稿时间： | 2015-01-21 |
| 修稿时间： | 2015-02-26 |
Comparison of Two Kinds of Nessler Colorimetric Method to Detect Soil Ammonium Nitrogen |
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| Abstract: | In this paper, two kinds of nessler's reagent colorimetric method of the comparative experiment to detect soil ammonium nitrogen, one is a kind of conventional nessler's reagent colorimetric method (routine method), another is a kind of improved method of nessler (speed measuring method), the test proved that the measuring method with wide linear range 0 ~ 168 mg/Kg; The whole process of testing time for 25 min, that than the conventional method to shorten half; Sensitive color, color stability time is long, it can be stable for a few hours; Test results showed that the soil nutrient content directly; Convenient operation; Finished product reagent, do not need to operating personnel from the match; Detection of low cost advantages. Portable measuring instrument and the detection method of form a complete set to meet basic measuring soil fertilizer use. |
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| Keywords: | nessler , Ammonium nitrogen , conventional method , Speed measuring method ,Joint leaching agent |
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