Improvement of Rice Seedling Establishment in Sulfate-Applied Submerged Soil by Application of Molybdate
Sulfide ion generation in strictly reduced soil might be a factor impairing rice seedling establishment. The molybdate ion is known to suppress the microbial transformation of sulfide ions from sulfate ions. I investigated the effect of molybdate on rice establishment in sulfate-applied submerged so...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2013-01-01
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| Series: | Plant Production Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1626/pps.16.61 |
| _version_ | 1819040247502077952 |
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| author | Yoshitaka Hara |
| author_facet | Yoshitaka Hara |
| author_sort | Yoshitaka Hara |
| collection | DOAJ |
| description | Sulfide ion generation in strictly reduced soil might be a factor impairing rice seedling establishment. The molybdate ion is known to suppress the microbial transformation of sulfide ions from sulfate ions. I investigated the effect of molybdate on rice establishment in sulfate-applied submerged soil. The establishment of rice seeds sown in sulfate-applied submerged soil was markedly improved by application of potassium molybdate at a rate of 1.5−15 mmol kg-1 dried soil. The application of potassium molybdate delayed the decline of the sulfur concentration in the soil solution near the seeds and the appearance of circular black stains, or insoluble iron sulfide indicating the generation of sulfide ion, around seeds in the soil. Irrespective of the application of molybdate, the redox potential near the seeds was low enough to allow generation of sulfide ions, implying that molybdate suppresses the generation of sulfide ions with no effect on redox potential. These results suggest that the application of molybdate could improve rice seedling establishment in sulfur-rich submerged soil by suppressing the generation of sulfide ions, that is a possible factor suppressing the establishment of rice seeds sown in sulfur-rich submerged soil. |
| first_indexed | 2024-12-21T09:06:04Z |
| format | Article |
| id | doaj.art-32e09c12ae124ecf88851b1fc71f4e61 |
| institution | Directory Open Access Journal |
| issn | 1343-943X 1349-1008 |
| language | English |
| last_indexed | 2024-12-21T09:06:04Z |
| publishDate | 2013-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Plant Production Science |
| spelling | doaj.art-32e09c12ae124ecf88851b1fc71f4e612022-12-21T19:09:20ZengTaylor & Francis GroupPlant Production Science1343-943X1349-10082013-01-01161616810.1626/pps.16.6111645140Improvement of Rice Seedling Establishment in Sulfate-Applied Submerged Soil by Application of MolybdateYoshitaka Hara0NARO Kyushu Okinawa Agricultural Research CenterSulfide ion generation in strictly reduced soil might be a factor impairing rice seedling establishment. The molybdate ion is known to suppress the microbial transformation of sulfide ions from sulfate ions. I investigated the effect of molybdate on rice establishment in sulfate-applied submerged soil. The establishment of rice seeds sown in sulfate-applied submerged soil was markedly improved by application of potassium molybdate at a rate of 1.5−15 mmol kg-1 dried soil. The application of potassium molybdate delayed the decline of the sulfur concentration in the soil solution near the seeds and the appearance of circular black stains, or insoluble iron sulfide indicating the generation of sulfide ion, around seeds in the soil. Irrespective of the application of molybdate, the redox potential near the seeds was low enough to allow generation of sulfide ions, implying that molybdate suppresses the generation of sulfide ions with no effect on redox potential. These results suggest that the application of molybdate could improve rice seedling establishment in sulfur-rich submerged soil by suppressing the generation of sulfide ions, that is a possible factor suppressing the establishment of rice seeds sown in sulfur-rich submerged soil.http://dx.doi.org/10.1626/pps.16.61Direct seedingEstablishmentMolybdenumPaddy soilRice plantsSulfateSulfide |
| spellingShingle | Yoshitaka Hara Improvement of Rice Seedling Establishment in Sulfate-Applied Submerged Soil by Application of Molybdate Plant Production Science Direct seeding Establishment Molybdenum Paddy soil Rice plants Sulfate Sulfide |
| title | Improvement of Rice Seedling Establishment in Sulfate-Applied Submerged Soil by Application of Molybdate |
| title_full | Improvement of Rice Seedling Establishment in Sulfate-Applied Submerged Soil by Application of Molybdate |
| title_fullStr | Improvement of Rice Seedling Establishment in Sulfate-Applied Submerged Soil by Application of Molybdate |
| title_full_unstemmed | Improvement of Rice Seedling Establishment in Sulfate-Applied Submerged Soil by Application of Molybdate |
| title_short | Improvement of Rice Seedling Establishment in Sulfate-Applied Submerged Soil by Application of Molybdate |
| title_sort | improvement of rice seedling establishment in sulfate applied submerged soil by application of molybdate |
| topic | Direct seeding Establishment Molybdenum Paddy soil Rice plants Sulfate Sulfide |
| url | http://dx.doi.org/10.1626/pps.16.61 |
| work_keys_str_mv | AT yoshitakahara improvementofriceseedlingestablishmentinsulfateappliedsubmergedsoilbyapplicationofmolybdate |