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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
31/01/2020 |
Actualizado : |
31/01/2020 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
BAETHGEN, W.E.; CHRISTIANSON, C.B.; GARCIA, A. |
Afiliación : |
WALTER E. BAETHGEN, Research and Development Division, International Fertilizer Development Center, Muscle Shoals, AL, United States; BRUCE C. CHRISTIANSON, Research and Development Division, International Fertilizer Development Center, Muscle Shoals, AL, United States; ADRIANA GARCIA LAMOTHE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Nitrogen fertilizer effects on growth, grain yield, and yield components of malting barley. |
Fecha de publicación : |
1995 |
Fuente / Imprenta : |
Field Crops Research, October 1995, Volume 43, Issue 2-3, Pages 87-99. |
ISSN : |
0378-4290 |
DOI : |
10.1016/0378-4290(95)00034-N |
Idioma : |
Inglés |
Notas : |
Article history: Received 28 January 1994 / Accepted 6 June 1995. |
Contenido : |
ABSTRACT.
Optimal strategies for using nitrogen fertilizer with malting barley (Hordeum vulgare L.) must aim to maximize yield while maintaining low N content in grain to preserve malting quality. Eleven field experiments were conducted during 1989-1991 with the objective of determining the impact of N fertilizer applied at different growth stages on crop growth, grain yield, and yield components of malting barley. Treatments included single applications of N fertilizer at sowing, at Zadoks growth stages Z-22 (midtillering) or Z-30 (end of tillering) and differing levels of N applied at each of these times. High rates of N applied early in the growing season stimulated tillering but many of these tillers did not produce spikes. An effect of N on spike number was evident only in comparisons of fertilized and unfertilized treatments through a positive correlation between number of spikes at maturity and the number of tillers at Z-30. Nitrogen fertilizer applied at Z-30 resulted in 30% to 100% increases in number of kernels/spike over unfertilized plots though number of kernels/spike was negatively correlated with number of spikes/m2, indicating compensation effects. Nitrogen applications at Z-30 were also most effective for increasing number of kernels/m2 while kernel weight responded only slightly to N. Mean kernel weight for all site-years revealed that none of the three years presented limiting conditions for grain filling. Cumulative probability curves for yields and yield components indicated that N fertilizer applied at Z-30 gave the best results in most situations but only when sufficient N was available at sowing to ensure crop establishment and initial tiller development. In contrast, the Z-30 treatment had the least impact on yield and yield components when no fertilizer was applied at sowing. Number of kernels/spike and number of kernels/m2 were the only two yield components with a clear association with grain yields. The research indicates that N fertilizer strategies for malting barley should ensure relatively small amounts of available N at sowing for crop establishment and initial tiller development. Additional N would then be applied at the end of tillering, the amount required depending on the crop and soil management systems used. © 1995. MenosABSTRACT.
Optimal strategies for using nitrogen fertilizer with malting barley (Hordeum vulgare L.) must aim to maximize yield while maintaining low N content in grain to preserve malting quality. Eleven field experiments were conducted during 1989-1991 with the objective of determining the impact of N fertilizer applied at different growth stages on crop growth, grain yield, and yield components of malting barley. Treatments included single applications of N fertilizer at sowing, at Zadoks growth stages Z-22 (midtillering) or Z-30 (end of tillering) and differing levels of N applied at each of these times. High rates of N applied early in the growing season stimulated tillering but many of these tillers did not produce spikes. An effect of N on spike number was evident only in comparisons of fertilized and unfertilized treatments through a positive correlation between number of spikes at maturity and the number of tillers at Z-30. Nitrogen fertilizer applied at Z-30 resulted in 30% to 100% increases in number of kernels/spike over unfertilized plots though number of kernels/spike was negatively correlated with number of spikes/m2, indicating compensation effects. Nitrogen applications at Z-30 were also most effective for increasing number of kernels/m2 while kernel weight responded only slightly to N. Mean kernel weight for all site-years revealed that none of the three years presented limiting conditions for grain filling. Cumulative probability curves for yields and yield... Presentar Todo |
Palabras claves : |
Fertilizer; Malting barley; Nitrogen; Yield components. |
Thesagro : |
HORDEUM VULGARE. |
Asunto categoría : |
F01 Cultivo |
URL : |
https://www.sciencedirect.com/science/article/pii/037842909500034N/pdf
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Marc : |
LEADER 03072naa a2200241 a 4500 001 1060732 005 2020-01-31 008 1995 bl uuuu u00u1 u #d 022 $a0378-4290 024 7 $a10.1016/0378-4290(95)00034-N$2DOI 100 1 $aBAETHGEN, W.E. 245 $aNitrogen fertilizer effects on growth, grain yield, and yield components of malting barley.$h[electronic resource] 260 $c1995 500 $aArticle history: Received 28 January 1994 / Accepted 6 June 1995. 520 $aABSTRACT. Optimal strategies for using nitrogen fertilizer with malting barley (Hordeum vulgare L.) must aim to maximize yield while maintaining low N content in grain to preserve malting quality. Eleven field experiments were conducted during 1989-1991 with the objective of determining the impact of N fertilizer applied at different growth stages on crop growth, grain yield, and yield components of malting barley. Treatments included single applications of N fertilizer at sowing, at Zadoks growth stages Z-22 (midtillering) or Z-30 (end of tillering) and differing levels of N applied at each of these times. High rates of N applied early in the growing season stimulated tillering but many of these tillers did not produce spikes. An effect of N on spike number was evident only in comparisons of fertilized and unfertilized treatments through a positive correlation between number of spikes at maturity and the number of tillers at Z-30. Nitrogen fertilizer applied at Z-30 resulted in 30% to 100% increases in number of kernels/spike over unfertilized plots though number of kernels/spike was negatively correlated with number of spikes/m2, indicating compensation effects. Nitrogen applications at Z-30 were also most effective for increasing number of kernels/m2 while kernel weight responded only slightly to N. Mean kernel weight for all site-years revealed that none of the three years presented limiting conditions for grain filling. Cumulative probability curves for yields and yield components indicated that N fertilizer applied at Z-30 gave the best results in most situations but only when sufficient N was available at sowing to ensure crop establishment and initial tiller development. In contrast, the Z-30 treatment had the least impact on yield and yield components when no fertilizer was applied at sowing. Number of kernels/spike and number of kernels/m2 were the only two yield components with a clear association with grain yields. The research indicates that N fertilizer strategies for malting barley should ensure relatively small amounts of available N at sowing for crop establishment and initial tiller development. Additional N would then be applied at the end of tillering, the amount required depending on the crop and soil management systems used. © 1995. 650 $aHORDEUM VULGARE 653 $aFertilizer 653 $aMalting barley 653 $aNitrogen 653 $aYield components 700 1 $aCHRISTIANSON, C.B. 700 1 $aGARCIA, A. 773 $tField Crops Research, October 1995, Volume 43, Issue 2-3, Pages 87-99.
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INIA Las Brujas (LB) |
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
02/10/2023 |
Actualizado : |
02/10/2023 |
Tipo de producción científica : |
Artículos en Revistas Agropecuarias |
Autor : |
BARRIOS, E.; ROVIRA, P.J.; LLOVET, P. |
Afiliación : |
ETHEL BALOISA BARRIOS PIRIZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PABLO JUAN ROVIRA SANZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PABLO ALEXIS LLOVET FILIPPINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Jornada de campo ganadería en la zona baja. "Capitalizando las sinergias del arroz y la soja". Unidad Experimental Paso de la Laguna. |
Complemento del título : |
Arroz-Ganadería. |
Fecha de publicación : |
2023 |
Fuente / Imprenta : |
Revista INIA Uruguay, Setiembre 2023, no.74 p.43-47. |
Serie : |
(Revista INIA; 74). |
ISSN : |
1510-9011 |
Idioma : |
Español |
Contenido : |
Avanzando en la integración de los componentes del sistema arroz-ganadería, productores arroceros y ganaderos, técnicos de instituciones y empresas participaron en una nueva jornada de campo, esta vez con foco en la fase ganadera del sistema. |
Palabras claves : |
SISTEMA ARROZ-GANADERÍA - INIA; SISTEMA GANADERO EXTENSIVO - INIA. |
Thesagro : |
ARROZ; GANADERIA. |
Asunto categoría : |
A50 Investigación agraria |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/17374/1/Revista-INIA-74-set-2023-11.pdf
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Marc : |
LEADER 00940naa a2200217 a 4500 001 1064328 005 2023-10-02 008 2023 bl uuuu u00u1 u #d 022 $a1510-9011 100 1 $aBARRIOS, E. 245 $aJornada de campo ganadería en la zona baja. "Capitalizando las sinergias del arroz y la soja". Unidad Experimental Paso de la Laguna.$h[electronic resource] 260 $c2023 490 $a(Revista INIA; 74). 520 $aAvanzando en la integración de los componentes del sistema arroz-ganadería, productores arroceros y ganaderos, técnicos de instituciones y empresas participaron en una nueva jornada de campo, esta vez con foco en la fase ganadera del sistema. 650 $aARROZ 650 $aGANADERIA 653 $aSISTEMA ARROZ-GANADERÍA - INIA 653 $aSISTEMA GANADERO EXTENSIVO - INIA 700 1 $aROVIRA, P.J. 700 1 $aLLOVET, P. 773 $tRevista INIA Uruguay, Setiembre 2023, no.74 p.43-47.
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