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Registros recuperados : 19 | |
2. | | BAETHGEN, W.E. Dinamica del nitrogeno en sistemas de rotación cultivos-pasturas: resumen In: ASOCIACIÓN DE INGENIEROS AGRÓNOMOS REGIONALES; INIA (INSTITUTO NACIONAL DE INVESTIGACIÓN AGROPECUARIA); SIMPOSIO SUSTENTABILIDAD DE LAS ROTACIONES CULTIVO - PASTURA, 8-9 AGOSTO 1991, PAYSANDÚ, URUGUAY. Resumenes. Montevideo (Uruguay): INIA, 1991. p.1 (INIA Serie técnica; 11) Trabajos publicados en la Revista INIA Investigaciones Agronómicas 1992 v.1(1)Biblioteca(s): INIA La Estanzuela; INIA Las Brujas. |
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4. | | Baethgen, W.E. La Investigación en laboreo para trigo en Uruguay ln: Seminario sobre Tecnologia de Trigo, 1982 set : Colonia Diaz, R. ; McMahon, M. (eds). [Memorias]. Colonia (Uruguay): CIMMMYT ; CIAAB, 1982. p123-142 Dialogo (IICA-PROCISUR) Instituto Interamericano de Cooperación para la AgriculturaBiblioteca(s): INIA La Estanzuela; INIA Treinta y Tres. |
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15. | | Díaz, R.M.; Baethgen, W.E. Siete sistemas de rotación Agrícola-Ganaderos ln: Seminario sobre sistemas en la Investigación Agropecuaria, 1981 : Set 14-18 : La Estanzuela.Colonia Colonia (Uruguay): IICA/BID, 1981. p109-113 Dentro del Programa Cooperativo de Investigación Agrícola en los países del Cono SurBiblioteca(s): INIA La Estanzuela; INIA Tacuarembó. |
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19. | | KANTER, D.R.; SCHWOOB, M-H.; BAETHGEN, W.E.; BERVEJILLO, J.E.; CARRIQUIRY, M.; DOBERMANN, A.; FERRARO, B.; LANFRANCO, B.; MONDELLI, M.; PENENGO, C.; SALDIAS, R.; SILVA, M.E.; SOARES DE LIMA, J.M. Translating the sustainable development goals into action: A participatory backcasting approach for developing national agricultural transformation pathways. Global Food Security, 2016, v.10, no.1, p. 71-79. Article history: Received 1 February 2016; Accepted 5 August 2016.Biblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
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Registros recuperados : 19 | |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha actual : |
31/01/2020 |
Actualizado : |
31/01/2020 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
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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