African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6837

Full Length Research Paper

Impacts of different levels of nitrogen fertilization on yield production, chemical composition and in vitro gas production of different varieties of barley (Hordeum vulgare) forages

J. Romero-Bernal
  • J. Romero-Bernal
  • Departamento de Nutrición Animal. Facultad de Medicina Veterinaria y Zootecnia, Instituto Literario 100 Oriente. Toluca, México. Z.C. 50000.
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L. A. Lara-Fuentes
  • L. A. Lara-Fuentes
  • Departamento de Nutrición Animal. Facultad de Medicina Veterinaria y Zootecnia, Instituto Literario 100 Oriente. Toluca, México. Z.C. 50000.
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J. R. Franco-Martinez
  • J. R. Franco-Martinez
  • Facultad de Ciencias Agrícolas, Universidad Autónoma del Estado de México. Instituto Literario 100 Oriente, Toluca, México. Z.C. 50000.
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I. A. Dominguez-Vara
  • I. A. Dominguez-Vara
  • Departamento de Nutrición Animal. Facultad de Medicina Veterinaria y Zootecnia, Instituto Literario 100 Oriente. Toluca, México. Z.C. 50000.
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A. Z. M. Salem
  • A. Z. M. Salem
  • Departamento de Nutrición Animal. Facultad de Medicina Veterinaria y Zootecnia, Instituto Literario 100 Oriente. Toluca, México. Z.C. 50000.
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M. González-Ronquillo
  • M. González-Ronquillo
  • Departamento de Nutrición Animal. Facultad de Medicina Veterinaria y Zootecnia, Instituto Literario 100 Oriente. Toluca, México. Z.C. 50000.
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  •  Accepted: 07 February 2013
  •  Published: 15 February 2013

Abstract

 

The performance, chemical composition and in vitro gas production of four varieties: Emerald (Eme),Capuchona (Cap), Petunia (Pet) and Cabuya (Cab) of whole plant barley (Hordeum vulgare) were evaluated, and fertilized with four levels of nitrogen (I, 80; II, 110; III, 140 and IV, 170 kg N/ha). The variables measuredwere: Height (dm), bulk (mm), number of leaves and yield production (Tonne DM/ha); chemical composition and in vitro gas production were determined using a 4 x 4 arrangement of 16 treatments within a randomized complete block design. The highest yield production (P < 0.001) was in Cap, (5.37 ± 0.35 Tonne/ha) followedby Pet and Cab. The height, bulk and number of leaves were higher (P < 0.001) in Cap (7.4 cm, 3.4 mm and 4.8, respectively) compared to the other varieties. NDF content was lower (P < 0.001) in Eme compared to therest. ADF in Cap and Eme was lower (P < 0.001) versus Pet and Cab. CP content was highest (P < 0.001) inPet, without differences (P > 0.05) between Cap and Cab (124.3 ± 2.8 g/kg DM), and a lowest content (P < 0.001) in Eme (110.3 g/kg DM). In vitro gas production was higher (P < 0.001) in Eme versus Cab. Data suggested that the Cap variety has the better production values and nutritional quality versus the other varieties.

 

Key words: Barley, Hordeum vulgare, in vitro gas production, fertilization.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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