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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
31/01/2020 |
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Actualizado : |
31/01/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
BAETHGEN, W.E.; CHRISTIANSON, C.B.; GARCIA, A. |
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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. |
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Título : |
Nitrogen fertilizer effects on growth, grain yield, and yield components of malting barley. |
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Fecha de publicación : |
1995 |
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Fuente / Imprenta : |
Field Crops Research, October 1995, Volume 43, Issue 2-3, Pages 87-99. |
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ISSN : |
0378-4290 |
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DOI : |
10.1016/0378-4290(95)00034-N |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 28 January 1994 / Accepted 6 June 1995. |
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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 |
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Palabras claves : |
Fertilizer; Malting barley; Nitrogen; Yield components. |
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Thesagro : |
HORDEUM VULGARE. |
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Asunto categoría : |
F01 Cultivo |
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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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Registro original : |
INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas; INIA Tacuarembó; INIA Treinta y Tres. |
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Fecha actual : |
08/01/2015 |
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Actualizado : |
15/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Agropecuarias |
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Autor : |
MUJICA, V.; ZOPPOLO, R. |
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Afiliación : |
MARIA VALENTINA MUJICA TELIZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ROBERTO JOSE ZOPPOLO GOLDSCHMIDT, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Manejo regional de plagas: una estrategia de producción que llegó para quedarse. |
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Fecha de publicación : |
2014 |
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Fuente / Imprenta : |
Revista INIA Uruguay, 2014, No.39, p.48-50. |
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Serie : |
(Revista INIA; 39) |
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ISSN : |
1510-9011 |
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Idioma : |
Español |
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Thesagro : |
CONTROL BIOLOGICO; CONTROL DE PLAGAS; FRUTICULTURA; LUCHA INTEGRADA; MIP. |
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Asunto categoría : |
H01 Protección de plantas - Aspectos generales |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/3913/1/Rev.INIA-2014-No39-p.48-50.pdf
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Marc : |
LEADER 00567naa a2200205 a 4500
001 1051980
005 2019-10-15
008 2014 bl uuuu u00u1 u #d
022 $a1510-9011
100 1 $aMUJICA, V.
245 $aManejo regional de plagas$buna estrategia de producción que llegó para quedarse.
260 $c2014
490 $a(Revista INIA; 39)
650 $aCONTROL BIOLOGICO
650 $aCONTROL DE PLAGAS
650 $aFRUTICULTURA
650 $aLUCHA INTEGRADA
650 $aMIP
700 1 $aZOPPOLO, R.
773 $tRevista INIA Uruguay, 2014, No.39, p.48-50.
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