| 石灰性土壤对氮肥吸持力实验方法改进的实践 |
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| 引用本文： | 张英利,许安民,尚浩博.石灰性土壤对氮肥吸持力实验方法改进的实践[J].实验科学与技术,2007,5(2):5-7. |
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| 作者姓名： | 张英利 许安民 尚浩博 |
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| 作者单位： | 西北农林科技大学资环学院,陕西,杨凌,712100 |
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| 摘 要： | 将先进仪器应用于实验教学之中,用连续流动分析仪测定土壤对氮素的吸附平衡液中NO3--N、NH4 -N,不但避免了以往用传统方法超学时严重,实验结果偏离真值的现象,同时,使学生扩大眼界,增强了创新意识,并使所学知识得到综合运用。
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| 关 键 词： | 石灰性土壤 实验 硝态氮 铵态氮 |
| 文章编号： | 1672-4550（2007）02-0005-03 |
| 收稿时间： | 2006-07-19 |
| 修稿时间： | 2006-11-06 |
Improving the Experiment of Calcareous Soil on Nitrogen Fertilizer Suction |
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| ZHANG Ying-li,XU An-min,SHANG Hao-bo.Improving the Experiment of Calcareous Soil on Nitrogen Fertilizer Suction[J].Experiment Science & Technology,2007,5(2):5-7. |
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| Authors: | ZHANG Ying-li XU An-min SHANG Hao-bo |
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| Abstract: | In this paper, advanced instruments were used in the experiment teaching. The NO3--N and NH4 -N in suction balance liquor of calcareous soil on nitrogen fertilizer were analyzed by Continuous Flow Analytical System. Compared with traditional methods, this method can save a lot of time and the experiment results would be close to the true value. Thus students can broaden their mind and improve their innovative ability. |
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| Keywords: | calcareous soil experiment NO_3~--N NH_4~ -N |
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