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Details van artikel 124 van 164 gevonden artikelen
| Titel: |
Smectite synthesis in volcanic ash soils - a probable cause of zinc deficiency in wetland rice |
| Auteur: |
Bajwa, M. I. |
| Verschenen in: |
Communications in soil science and plant analysis |
| Paginering: | Jaargang 15 (1984) nr. 2 pagina's 135-140 |
| Jaar: |
1984-02 |
| Inhoud: |
In an effort to ascertain the role of clay type in the widespread Zn deficieny on certain important wetland rice soils, 200 surface soil samples both from problem and non-problem areas were investigated for clay mineralogy and available Zn content and correlated, as information on this aspect is scanty. Results showed prevalence of Zn deficiency on soils having x-ray amorphous and smectitic clays of volcanic ash origin. Smectite synthesis from the x-ray amorphous constituents particularly appeared responsible for the disorder presumably either through Zn incorporation in the crystal structure to form 'sauconite' or through its preferential sorption on the synthesized crystallites. Other mineral species - chlorite, vermiculite, kaolinite, halloy-site and hydrous mica - did not appear to be related to Zn deficiency on these soils. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 124 van 164 gevonden artikelen
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