| 用微量吸管法测定红壤颗粒组成的研究 |
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| 引用本文： | 章明奎,姜宏.用微量吸管法测定红壤颗粒组成的研究[J].浙江大学学报(农业与生命科学版),2001,27(6):649-651. |
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| 作者姓名： | 章明奎 姜宏 |
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| 作者单位： | 浙江大学资源科学系, |
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| 基金项目： | 国家自然科学基金资助项目(49601013) |
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| 摘 要： | 用微量吸管法对红壤颗粒组成进行了研究,结果表明,用土量4.00g,吸液量5 mL的微量吸管法的测定结果稳定,与吸管法无明显差异,重现性优于比重计法,能满足快速测定的需要.但用土量太少(2.00g)或吸液量太少(2.5 mL)可能会引起较大的偏差.
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| 关 键 词： | 微量吸管法 颗粒组成 精度 红壤 |
| 文章编号： | 1008-9209(2001)06-0649-03 |
| 修稿时间： | 2000年12月25 |
Particle determination of red soils using micro-pipette method |
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| ZHANG Ming-kui,JIANG Hong.Particle determination of red soils using micro-pipette method[J].Journal of Zhejiang University(Agriculture & Life Sciences),2001,27(6):649-651. |
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| Authors: | ZHANG Ming-kui JIANG Hong |
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| Abstract: | It was concluded from the results on a wide range texture of soils that particle composition of red soils could be analyzed effectively with a micro-pipette method (using 4.00 g soil and sampling 5 mL suspension) that have low coefficient of variation with accuracy and precision comparable to pipette method and much higher repeatable than hydrometer method. Micro-pipette method could meet requirement for rapid determination of soil particle composition. However, variability between replicates was higher when only 2.0 g of soil was used or 2.5 mL suspension was sampled in the micro-pipette method. |
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| Keywords: | micro-pipette method particle composition analysis precision red soil |
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