Abstract
Owing to its theoretical and practical significance, the subject of sulfides in paddy soils has attracted much attention to many soil scientists(l,2) For the determination of sulfides in soils, chemical methods are generally used. But with these methods it is unavoidable to disturb the chemical equilibria originally existing in the soil during extraction and the subsequent determination, and it is also not possible to distinguish the molecular hydrogen sulfide from the ionic HS and S. In recent years there have appeared two papers pertaining to the study of sulfide in submerged soils with a sulfide-selective electrode(3,4). But it is necessary to make some assumptions in converting the measured sulfide ion into hydrogen sulfide, and thus the obtained results are still indirect.
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References
Yu Tian-ren, Liu Zhi-guang, Oxidation-reduction processes in paddy soils and their relationship with the growth of rice plant. Acta Pedologica Sinica., 12,380–389 (1964). (in Chinese with English summary)
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© 1981 Science Press, Beijing and Springer-Verlag Berlin Heidelberg
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Shu-zhen, P. (1981). Chemical Equilibria of Sulfides as Studied with a Hydrogen Sulfide Sensor. In: Proceedings of Symposium on Paddy Soils. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-68141-7_19
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DOI: https://doi.org/10.1007/978-3-642-68141-7_19
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