A simple, low‐cost technique for in situ measurement of leaf P concentration in field‐grown rice
Simple tools for diagnosing crop nutritional status are in great demand by agricultural extension staff, particularly in low‐fertility environments. We developed the first practical method for in situ diagnosis of phosphorus (P) nutrition in field‐grown cereal crops by using a handheld colorimeter....
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2019
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/164771 |
| _version_ | 1855541262838398976 |
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| author | Yamane, Koji Mabesa-Telosa, Ranee C. Tajima, Ryosuke Banayo, Niño P.M.C. Kato, Yoichiro |
| author_browse | Banayo, Niño P.M.C. Kato, Yoichiro Mabesa-Telosa, Ranee C. Tajima, Ryosuke Yamane, Koji |
| author_facet | Yamane, Koji Mabesa-Telosa, Ranee C. Tajima, Ryosuke Banayo, Niño P.M.C. Kato, Yoichiro |
| author_sort | Yamane, Koji |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Simple tools for diagnosing crop nutritional status are in great demand by agricultural extension staff, particularly in low‐fertility environments. We developed the first practical method for in situ diagnosis of phosphorus (P) nutrition in field‐grown cereal crops by using a handheld colorimeter. The concentration of P in extracts from fresh leaves of lowland rice grown under various P availabilities was closely correlated with that of oven‐dried leaves measured with the standard molybdenum‐blue method in the laboratory, over a range of values from 0.319 to 1.420 mg P g −1 DW (r = 0.885**, n = 14). It takes only 3–5 min to estimate the P concentration of plant samples using the new technique. Although not as accurate as the laboratory method, the new method can easily detect P deficiency of rice in the field (and possibly other cereal crops) without requiring costly, off‐site equipment. Thus, extension staff and agronomists can easily adopt this technique. |
| format | Journal Article |
| id | CGSpace164771 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace1647712025-05-14T10:24:30Z A simple, low‐cost technique for in situ measurement of leaf P concentration in field‐grown rice Yamane, Koji Mabesa-Telosa, Ranee C. Tajima, Ryosuke Banayo, Niño P.M.C. Kato, Yoichiro colour leaf colour chart leaves nutritive value phosphorus Simple tools for diagnosing crop nutritional status are in great demand by agricultural extension staff, particularly in low‐fertility environments. We developed the first practical method for in situ diagnosis of phosphorus (P) nutrition in field‐grown cereal crops by using a handheld colorimeter. The concentration of P in extracts from fresh leaves of lowland rice grown under various P availabilities was closely correlated with that of oven‐dried leaves measured with the standard molybdenum‐blue method in the laboratory, over a range of values from 0.319 to 1.420 mg P g −1 DW (r = 0.885**, n = 14). It takes only 3–5 min to estimate the P concentration of plant samples using the new technique. Although not as accurate as the laboratory method, the new method can easily detect P deficiency of rice in the field (and possibly other cereal crops) without requiring costly, off‐site equipment. Thus, extension staff and agronomists can easily adopt this technique. 2019-02 2024-12-19T12:54:16Z 2024-12-19T12:54:16Z Journal Article https://hdl.handle.net/10568/164771 en Wiley Yamane, Koji; Mabesa-Telosa, Ranee C.; Tajima, Ryosuke; Banayo, Nino P. M. C. and Kato, Yoichiro. 2018. A simple, low‐cost technique for in situ measurement of leaf P concentration in field‐grown rice. J. Plant Nutr. Soil Sci., Volume 182 no. 1 p. 28-30 |
| spellingShingle | colour leaf colour chart leaves nutritive value phosphorus Yamane, Koji Mabesa-Telosa, Ranee C. Tajima, Ryosuke Banayo, Niño P.M.C. Kato, Yoichiro A simple, low‐cost technique for in situ measurement of leaf P concentration in field‐grown rice |
| title | A simple, low‐cost technique for in situ measurement of leaf P concentration in field‐grown rice |
| title_full | A simple, low‐cost technique for in situ measurement of leaf P concentration in field‐grown rice |
| title_fullStr | A simple, low‐cost technique for in situ measurement of leaf P concentration in field‐grown rice |
| title_full_unstemmed | A simple, low‐cost technique for in situ measurement of leaf P concentration in field‐grown rice |
| title_short | A simple, low‐cost technique for in situ measurement of leaf P concentration in field‐grown rice |
| title_sort | simple low cost technique for in situ measurement of leaf p concentration in field grown rice |
| topic | colour leaf colour chart leaves nutritive value phosphorus |
| url | https://hdl.handle.net/10568/164771 |
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