Measurement of Si adsorption and 'Active Si' in a soil amended with slag fertilizers by using stable isotope30SP
| Autor: | Kazuyoshi Yanagisawa, Naoto Owa, Naoto Kato |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Stable isotope ratio
Chemistry Soil acidification food and beverages Soil Science Slag Mineralogy Plant Science Isotope dilution complex mixtures chemistry.chemical_compound Adsorption visual_art Phase (matter) Environmental chemistry visual_art.visual_art_medium Cation-exchange capacity Silicic acid |
| Zdroj: | Soil Science and Plant Nutrition. 43:623-631 |
| ISSN: | 1747-0765 0038-0768 |
| DOI: | 10.1080/00380768.1997.10414788 |
| Popis: | The silicic acid adsorption by a soil (Eutric Gleysols) where slag fertilizers were applied was measured by the addition of a silicic acid solution labelled with 30Si after soil incubation, in order to study the effect of slag application on the specific Si adsorption by the soil and to estimate the amount of Si in the soil solid phase which can easily enter the soil solution. It was evident that the application of slags increased the ability of soil to adsorb Si. It was also shown that the 30Si added was diluted with not only the Si present in the soil solution but also the Si dissolved from the soil solid phase. We proposed the use of the term “active” for Si in soil which can take part in the isotopic dilution within 1 h. The amount of active Si in the soil solid and liquid phases (D 60 - value) was calculated from the 30Si content in the soil solution and compared with the amount of Si taken up by rice plant (Oryza sativa L.), which was determined in our previous study. The buffering capacity... |
| Databáze: | OpenAIRE |
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