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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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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
04/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
DAVIES, P. |
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Afiliación : |
PHILIP DAVIES, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Experimentation on the cultivation of Achyrocline flaccida (Weinm.) D.C. and Achyrocline satureioides (Lam.) D.C. in Uruguay(Conference Paper). |
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Fecha de publicación : |
1999 |
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Fuente / Imprenta : |
Acta Horticulturae, December 1999, Nro. 502, p. 59-66. |
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Serie : |
(Acta Horticulturae; 502). |
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ISSN : |
0567-7572 |
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DOI : |
10.17660/ActaHortic.1999.502.6 |
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Idioma : |
Inglés |
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Notas : |
ISHS Acta Horticulturae 502: II WOCMAP Congress Medicinal and Aromatic Plants, Part 3: Agricultural Production, Post Harvest Techniques, Biotechnology. Symposium venue: Mendoza (Argentina). Symposium date: November 10, 1997. Editors: G. Gilbert, M. Lorenz, A. Giulietti, L. Craker, A. Mathé.
Gropu: Division Horticulture for Human Health. |
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Contenido : |
Abstract
Seed conservation studies were conducted at the Germplasm Bank of the Faculty of Agronomy. The most efficient method was to conserve the seed in Aluminium envelopes after desiccation under room conditions. Seed germination after seeding showed values from 50 to 91% for A. satureioides, depending on the site of origin of the seed. Seed from A. flaccida showed 65% germination after six months from seeding, with the seed kept at room conditions in a paper envelope. Propagation of both species was made by sowing and cuttings in autumn and spring at the Experimental Station INIA Las Brujas, Canelones, Uruguay. Propagation by cuttings in spring was not effective due to flowering in plants with little development that did not persist towards the second year. Autumn cuttings showed poor rooting. The most effective method was sowing in autumn. Sowing in a field seedbed under plastic cover gave acceptable results. Sowing was done on May 8, 1992, and in the field two distances between plants in the line were compared (30 and 45 cm). For A. satureioides, flower yields in the first harvest were 1218 and 920 kg/ha for the two plantation distances (30 and 45 cm respectively). For A. flaccida these yields were 320 and 134 kg/ha. In the second year (harvested on March 30, 1994) these values were 540 and 897 kg/ha for A. satureioides and 5567 and 330 kg/ha for A. flaccida. |
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Palabras claves : |
ACHYROCLINE FLACCIDA (WEINM.); CONVENIO QUEMIDUR. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 02384naa a2200193 a 4500
001 1012495
005 2019-10-04
008 1999 bl uuuu u00u1 u #d
022 $a0567-7572
024 7 $a10.17660/ActaHortic.1999.502.6$2DOI
100 1 $aDAVIES, P.
245 $aExperimentation on the cultivation of Achyrocline flaccida (Weinm.) D.C. and Achyrocline satureioides (Lam.) D.C. in Uruguay(Conference Paper).$h[electronic resource]
260 $c1999
490 $a(Acta Horticulturae; 502).
500 $aISHS Acta Horticulturae 502: II WOCMAP Congress Medicinal and Aromatic Plants, Part 3: Agricultural Production, Post Harvest Techniques, Biotechnology. Symposium venue: Mendoza (Argentina). Symposium date: November 10, 1997. Editors: G. Gilbert, M. Lorenz, A. Giulietti, L. Craker, A. Mathé. Gropu: Division Horticulture for Human Health.
520 $aAbstract Seed conservation studies were conducted at the Germplasm Bank of the Faculty of Agronomy. The most efficient method was to conserve the seed in Aluminium envelopes after desiccation under room conditions. Seed germination after seeding showed values from 50 to 91% for A. satureioides, depending on the site of origin of the seed. Seed from A. flaccida showed 65% germination after six months from seeding, with the seed kept at room conditions in a paper envelope. Propagation of both species was made by sowing and cuttings in autumn and spring at the Experimental Station INIA Las Brujas, Canelones, Uruguay. Propagation by cuttings in spring was not effective due to flowering in plants with little development that did not persist towards the second year. Autumn cuttings showed poor rooting. The most effective method was sowing in autumn. Sowing in a field seedbed under plastic cover gave acceptable results. Sowing was done on May 8, 1992, and in the field two distances between plants in the line were compared (30 and 45 cm). For A. satureioides, flower yields in the first harvest were 1218 and 920 kg/ha for the two plantation distances (30 and 45 cm respectively). For A. flaccida these yields were 320 and 134 kg/ha. In the second year (harvested on March 30, 1994) these values were 540 and 897 kg/ha for A. satureioides and 5567 and 330 kg/ha for A. flaccida.
653 $aACHYROCLINE FLACCIDA (WEINM.)
653 $aCONVENIO QUEMIDUR
773 $tActa Horticulturae, December 1999, Nro. 502, p. 59-66.
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