Sources of nitrogen and methods of application for flooded rice. I. Comparison of two methods of applying slow-release and standard fertilizer materials
Field experiments with rice were conducted on a flooded soil comparing two standard fertilizers with N fertilizers with various release rates. For each of these fertilizer materials two methods of application were compared: broadcast and incorporated, and placement at 15 cm depth. The .slow release...
| Autores principales: | , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Cambridge University Press
1967
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| Acceso en línea: | https://hdl.handle.net/10568/166193 |
| _version_ | 1855516989625204736 |
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| author | Simsiman, G.V. De Datta, S.K. Moomaw, J.C. |
| author_browse | De Datta, S.K. Moomaw, J.C. Simsiman, G.V. |
| author_facet | Simsiman, G.V. De Datta, S.K. Moomaw, J.C. |
| author_sort | Simsiman, G.V. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Field experiments with rice were conducted on a flooded soil comparing two standard fertilizers with N fertilizers with various release rates. For each of these fertilizer materials two methods of application were compared: broadcast and incorporated, and placement at 15 cm depth. The .slow release materials resulted in a lower grain yield than did fast or medium release rate or standard fertilizer materials. They released N too slowly during the early growth of rice to permit optimum plant growth and development.Placement of 80 kg/ha N at 15 cm depth increased the plant N content at all stages of growth and significantly increased the grain yield compared with the broadcast-and-incorporated fertilizer treatment. The highest grain yield in the experiment (7701 kg/ha rough rice) was obtained from a medium release material, which was 88 % more efficient in increasing grain yield per unit of N when placed at 15 cm than when broadcast-and-incorporated.The recovery of fertilizer N was 68% when deeply placed and 38 % when broadcast-andincorporated. |
| format | Journal Article |
| id | CGSpace166193 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1967 |
| publishDateRange | 1967 |
| publishDateSort | 1967 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace1661932025-05-14T10:39:31Z Sources of nitrogen and methods of application for flooded rice. I. Comparison of two methods of applying slow-release and standard fertilizer materials Simsiman, G.V. De Datta, S.K. Moomaw, J.C. Field experiments with rice were conducted on a flooded soil comparing two standard fertilizers with N fertilizers with various release rates. For each of these fertilizer materials two methods of application were compared: broadcast and incorporated, and placement at 15 cm depth. The .slow release materials resulted in a lower grain yield than did fast or medium release rate or standard fertilizer materials. They released N too slowly during the early growth of rice to permit optimum plant growth and development.Placement of 80 kg/ha N at 15 cm depth increased the plant N content at all stages of growth and significantly increased the grain yield compared with the broadcast-and-incorporated fertilizer treatment. The highest grain yield in the experiment (7701 kg/ha rough rice) was obtained from a medium release material, which was 88 % more efficient in increasing grain yield per unit of N when placed at 15 cm than when broadcast-and-incorporated.The recovery of fertilizer N was 68% when deeply placed and 38 % when broadcast-andincorporated. 1967-10 2024-12-19T12:55:59Z 2024-12-19T12:55:59Z Journal Article https://hdl.handle.net/10568/166193 en Cambridge University Press Simsiman, G. V.; De Datta, S. K. and Moomaw, J. C. 1967. Sources of nitrogen and methods of application for flooded rice. I. Comparison of two methods of applying slow-release and standard fertilizer materials. J. Agric. Sci., Volume 69 no. 2 p. 189-196 |
| spellingShingle | Simsiman, G.V. De Datta, S.K. Moomaw, J.C. Sources of nitrogen and methods of application for flooded rice. I. Comparison of two methods of applying slow-release and standard fertilizer materials |
| title | Sources of nitrogen and methods of application for flooded rice. I. Comparison of two methods of applying slow-release and standard fertilizer materials |
| title_full | Sources of nitrogen and methods of application for flooded rice. I. Comparison of two methods of applying slow-release and standard fertilizer materials |
| title_fullStr | Sources of nitrogen and methods of application for flooded rice. I. Comparison of two methods of applying slow-release and standard fertilizer materials |
| title_full_unstemmed | Sources of nitrogen and methods of application for flooded rice. I. Comparison of two methods of applying slow-release and standard fertilizer materials |
| title_short | Sources of nitrogen and methods of application for flooded rice. I. Comparison of two methods of applying slow-release and standard fertilizer materials |
| title_sort | sources of nitrogen and methods of application for flooded rice i comparison of two methods of applying slow release and standard fertilizer materials |
| url | https://hdl.handle.net/10568/166193 |
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