| 关于目前我国常用的几种土壤反应混合指示剂在使用上的探讨 |
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| 引用本文： | 袁可能,朱祖祥.关于目前我国常用的几种土壤反应混合指示剂在使用上的探讨[J].土壤学报,1956,4(1):59-75. |
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| 作者姓名： | 袁可能 朱祖祥 |
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| 作者单位： | 浙江农学院; |
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| 摘 要： | 一.引言随着农业生产事业的日益发展与农业科学技术的日益推广,农民们对于测定土壤反应的要求也日益增长,因此,一个简单而准确的反应混合指示剂已十分迫切需要。但是我国目前所用的指示剂,种类很多,即使是同一类型的混合指示剂,各地的配制方法
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| 关 键 词： | 黑钙土 酸性反应 离心机 乙醇 土壤浸出液 土壤反应 混合指示剂 溶解度 混合液 吸收能力 |
STUDIES ON THE USE OF SOME INDICATOR MIXTURES FOR THE DETERMINATION OF SOIL REACTION |
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| Yuen Ko-nun and Chu Tsu-siang.STUDIES ON THE USE OF SOME INDICATOR MIXTURES FOR THE DETERMINATION OF SOIL REACTION[J].Acta Pedologica Sinica,1956,4(1):59-75. |
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| Authors: | Yuen Ko-nun and Chu Tsu-siang |
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| Institution: | Chekiang Agricultural College;Chekiang |
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| Abstract: | Among the factors which may lead to inaccuracy of results in the use ofsome indicator mixtures for the direct determination of soil reaction, the follow-ing were studied in the present work:(1)Unequal adsorption of indicators by soils;(2)High proportion of alcohol to water in the indicator mixture;(3)Change of solubility of some of indicators as affected by the acid-base status of the soil and/or by changing the concentration of alcohol whileadmixing the indicator mixture into the soil suspension;(4)High co... |
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