Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia
The area of dry-season rice (Oryza sativa L.) has rapidly increased in Cambodia owing to the large-scale development of irrigation infrastructure. But little is known of potential productivity and adaptive crop management. The objective of our study was to evaluate potential yield and nutrient requi...
| Autores principales: | , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Cambridge University Press
2020
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| Acceso en línea: | https://hdl.handle.net/10568/164610 |
| _version_ | 1855514640407068672 |
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| author | Kong, Kea Hin, Sarith Seng, Vang Ismail, Abdelbagi M. Vergara, Georgina Choi, Il-Ryong Ehara, Hiroshi Kato, Yoichiro |
| author_browse | Choi, Il-Ryong Ehara, Hiroshi Hin, Sarith Ismail, Abdelbagi M. Kato, Yoichiro Kong, Kea Seng, Vang Vergara, Georgina |
| author_facet | Kong, Kea Hin, Sarith Seng, Vang Ismail, Abdelbagi M. Vergara, Georgina Choi, Il-Ryong Ehara, Hiroshi Kato, Yoichiro |
| author_sort | Kong, Kea |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | The area of dry-season rice (Oryza sativa L.) has rapidly increased in Cambodia owing to the large-scale development of irrigation infrastructure. But little is known of potential productivity and adaptive crop management. The objective of our study was to evaluate potential yield and nutrient requirements of dry-season rice in Cambodia, and the economic feasibility of soil-specific management recommended by the government. Field experiments were conducted on four soil types (Bakan, equivalent to Alfisol; Krakor, Inceptisol; Prateah Lang, Plinthustalfs; and Toul Samroung, Endoaqualfs) in four provinces (Battambang, Kampong Thom, Pursat, and Siem Reap) during the 2016 and 2017 dry seasons to compare 14 (2016) and 8 (2017) N-P-K combinations. Grain yield ranged from 1.0 to 5.5 t ha−1 in 2016 and from 1.3 to 6.7 t ha−1 in 2017. Potential yield from the experiments was 6–7 t ha−1 on Toul Samroung soil, 5–6 t ha−1 on Bakan soil, and 3–5 t ha−1 on Prateah Lang and Krakor soils. A rate of 140-60-60 kg ha−1 of N-P2O5-K2O was more than enough to achieve the best yields on any soil group. On the other hand, modest application rates in soil-specific management (44–78 kg ha−1 of N, 23–28 kg ha−1 of P2O5, 0–30 kg ha−1 of K2O) proved reasonable for resource-poor farmers in Cambodia, since the treatment always provided >75 % of the highest economic profit in high-input plots. |
| format | Journal Article |
| id | CGSpace164610 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace1646102025-02-19T14:24:20Z Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia Kong, Kea Hin, Sarith Seng, Vang Ismail, Abdelbagi M. Vergara, Georgina Choi, Il-Ryong Ehara, Hiroshi Kato, Yoichiro agronomy crop science The area of dry-season rice (Oryza sativa L.) has rapidly increased in Cambodia owing to the large-scale development of irrigation infrastructure. But little is known of potential productivity and adaptive crop management. The objective of our study was to evaluate potential yield and nutrient requirements of dry-season rice in Cambodia, and the economic feasibility of soil-specific management recommended by the government. Field experiments were conducted on four soil types (Bakan, equivalent to Alfisol; Krakor, Inceptisol; Prateah Lang, Plinthustalfs; and Toul Samroung, Endoaqualfs) in four provinces (Battambang, Kampong Thom, Pursat, and Siem Reap) during the 2016 and 2017 dry seasons to compare 14 (2016) and 8 (2017) N-P-K combinations. Grain yield ranged from 1.0 to 5.5 t ha−1 in 2016 and from 1.3 to 6.7 t ha−1 in 2017. Potential yield from the experiments was 6–7 t ha−1 on Toul Samroung soil, 5–6 t ha−1 on Bakan soil, and 3–5 t ha−1 on Prateah Lang and Krakor soils. A rate of 140-60-60 kg ha−1 of N-P2O5-K2O was more than enough to achieve the best yields on any soil group. On the other hand, modest application rates in soil-specific management (44–78 kg ha−1 of N, 23–28 kg ha−1 of P2O5, 0–30 kg ha−1 of K2O) proved reasonable for resource-poor farmers in Cambodia, since the treatment always provided >75 % of the highest economic profit in high-input plots. 2020-04 2024-12-19T12:54:06Z 2024-12-19T12:54:06Z Journal Article https://hdl.handle.net/10568/164610 en Cambridge University Press Kong, Kea; Hin, Sarith; Seng, Vang; Ismail, Abdelbagi M.; Vergara, Georgina; Choi, Il-Ryong; Ehara, Hiroshi and Kato, Yoichiro. 2020. Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia. Ex. Agric., Volume 56 no. 2 p. 255-264 |
| spellingShingle | agronomy crop science Kong, Kea Hin, Sarith Seng, Vang Ismail, Abdelbagi M. Vergara, Georgina Choi, Il-Ryong Ehara, Hiroshi Kato, Yoichiro Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia |
| title | Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia |
| title_full | Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia |
| title_fullStr | Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia |
| title_full_unstemmed | Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia |
| title_short | Potential yield and nutrient requirements of direct-seeded, dry-season rice in Cambodia |
| title_sort | potential yield and nutrient requirements of direct seeded dry season rice in cambodia |
| topic | agronomy crop science |
| url | https://hdl.handle.net/10568/164610 |
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