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 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
09/06/2021 |
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Actualizado : |
15/06/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
MARTÍNEZ, S. |
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Afiliación : |
SEBASTIÁN MARTÍNEZ KOPP, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Stem rot management by nitrogen and potassium fertilization and effect on grain yield and quality of rice in Uruguay. |
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Fecha de publicación : |
2021 |
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Fuente / Imprenta : |
Canadian Journal of Plant Pathology, 2021, volume 43, issue 6, pages 783-793. Doi: https://doi.org/10.1080/07060661.2021.192293 |
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DOI : |
10.1080/07060661.2021.192293 |
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Idioma : |
Inglés |
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Notas : |
Article history: Accepted 23 Apr 2021// Accepted author version posted online: 27 Apr 2021 // Published online: 27 May 2021. Correspondence: smartinez@inia.org.uy. |
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Contenido : |
Stem rot (Nakataea oryzae) limits rice (Oryza sativa) production in Uruguay when there are high inoculum levels in the soil. This disease is particularly damaging in potassium (K)-deficient soils that receive excessive nitrogen (N) fertilization. Nevertheless, no data exist for the response to stem rot in modern rice cultivars with respect to the interaction between balanced N and K fertilization. The aim of this work was to evaluate the combined effect of K and N fertilization and a foliar phosphite (Phi) in reducing stem rot severity in rice to prevent significant yield losses. A 3-year field study was conducted in a rice-producing region of Uruguay to investigate the effects of: (1) K fertilization rate, 0 or based on the Mg:K ratio; (2) N fertilization rate, 0 or 140 kg ha?1 N; and (3) Phi treatment, with or without foliar Phi (1.775 kg ha?1 of K Phi, 71%), at growth stage R2-R3. While the experiment was conducted in a soil with sufficient potassium, K fertilization reduced the severity and percentage of rice tillers that were severely affected by stem rot, resulting in a mean yield increment of 2% to 18% depending on the year (mean 7.5%). Nitrogen fertilization increased stem rot severity in only 1 year, but resulted in a mean yield increment of 10% over the 3 years of the experiment. Foliar Phi applied at the late boot to panicle exertion stage did not reduce disease incidence or severity and failed to increase the total rice grain and milling yield. |
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Palabras claves : |
FERTILIZATION; FUNGICIDE; NAKATAEA ORYZAE; ORYZA SATIVA; POTASSIUM PHOSPHITE; URUGUAY. |
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Asunto categoría : |
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Marc : |
LEADER 02378naa a2200217 a 4500
001 1062121
005 2022-06-15
008 2021 bl uuuu u00u1 u #d
024 7 $a10.1080/07060661.2021.192293$2DOI
100 1 $aMARTÍNEZ, S.
245 $aStem rot management by nitrogen and potassium fertilization and effect on grain yield and quality of rice in Uruguay.$h[electronic resource]
260 $c2021
500 $aArticle history: Accepted 23 Apr 2021// Accepted author version posted online: 27 Apr 2021 // Published online: 27 May 2021. Correspondence: smartinez@inia.org.uy.
520 $aStem rot (Nakataea oryzae) limits rice (Oryza sativa) production in Uruguay when there are high inoculum levels in the soil. This disease is particularly damaging in potassium (K)-deficient soils that receive excessive nitrogen (N) fertilization. Nevertheless, no data exist for the response to stem rot in modern rice cultivars with respect to the interaction between balanced N and K fertilization. The aim of this work was to evaluate the combined effect of K and N fertilization and a foliar phosphite (Phi) in reducing stem rot severity in rice to prevent significant yield losses. A 3-year field study was conducted in a rice-producing region of Uruguay to investigate the effects of: (1) K fertilization rate, 0 or based on the Mg:K ratio; (2) N fertilization rate, 0 or 140 kg ha?1 N; and (3) Phi treatment, with or without foliar Phi (1.775 kg ha?1 of K Phi, 71%), at growth stage R2-R3. While the experiment was conducted in a soil with sufficient potassium, K fertilization reduced the severity and percentage of rice tillers that were severely affected by stem rot, resulting in a mean yield increment of 2% to 18% depending on the year (mean 7.5%). Nitrogen fertilization increased stem rot severity in only 1 year, but resulted in a mean yield increment of 10% over the 3 years of the experiment. Foliar Phi applied at the late boot to panicle exertion stage did not reduce disease incidence or severity and failed to increase the total rice grain and milling yield.
653 $aFERTILIZATION
653 $aFUNGICIDE
653 $aNAKATAEA ORYZAE
653 $aORYZA SATIVA
653 $aPOTASSIUM PHOSPHITE
653 $aURUGUAY
773 $tCanadian Journal of Plant Pathology, 2021, volume 43, issue 6, pages 783-793. Doi: https://doi.org/10.1080/07060661.2021.192293
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| 8. |  | MARTÍNEZ, S.; ESCALANTE, F. Dinámica de enfermedades de tallo y vaina en sistemas de rotaciones arroceras, primeras cuatro zafras. ln: JORNADA ANUAL ARROZ, 2016, INIA TREINTA Y TRES, TREINTA Y TRES, UY. Arroz: resultados experimentales 2015-2016. Treinta y Tres, (Uruguay): INIA, 2016. cap. 4, p. 4-6. (INIA Serie Actividades de Difusión; 765)| Biblioteca(s): INIA Tacuarembó; INIA Treinta y Tres. |
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| 16. | | MARTÍNEZ, S.; ESCALANTE, F. Control of stem rot of rice in different rice rotations. (IPM2 P10). [Abstract]. XIX International Plant Protection Congress, IPPC 2019. 10-14 November 2019, Hyderabad, Telangana, India. "Crop Protection to Outsmart Climate Change for Food Security & Environmental Conservation". Organized by ICRISAT (International Crops Research Institute for the Semi-Arid Tropics). In: INTERNATIONAL PLANT PROTECTION CONGRESS, 19, 2019, Hyderabad, India. Abstract Book... Hyderabad: IPPC, 2019. p. 288.| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA Las Brujas. |
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| Registros recuperados : 159 | |
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