Doses of phosphorus on initial development and forage production of cultivars of Panicum maximum

Authors

  • Francisco Eduardo Torres Universidade Estadual de Mato Grosso do Sul
  • Paulo Eduardo Teodoro Universidade Federal de Viçosa
  • Larissa Pereira Ribeiro Universidade Estadual de Mato Grosso do Sul
  • Elisa Pereira de Oliveira Universidade Estadual Paulista
  • Marcus Vinicius Morais de Oliveira Universidade Estadual de Mato Grosso
  • Carlos Antonio da Silva Junior Universidade Estadual de Mato Grosso
  • Caio Cezar Guedes Corrêa Universidade Estadual do Norte Fluminense Darcy Ribeiro

DOI:

https://doi.org/10.14393/BJ-v32n6a2016-30196

Keywords:

phosphate fertilizer, morphometric characters, degraded pastures.

Abstract

Phosphorus shortage in the Savanna is one of the main limiting factors for forage production and directly responsible for the degradation of pastures in this Brazilian region. Thus, the aim of this study was to evaluate the effect of increasing doses of P on the initial development and forage production of four cultivars of P. maximum. The experiment was conducted during the months of December 2010 to May 2011 at Universidade Estadual de Mato Grosso do Sul, Unit of Aquidauana-MS. It was used the completely randomized design in a factorial scheme 4x5, with four replications. The experimental unit consists of polyethylene pots with 5 L capacity arranged in countertop in greenhouse. The first factor consisted of four P. maximum cultivars (Massai, Mombaça, Ãries and Atlas), while the second factor consists of five doses of phosphorus (0, 5, 10, 30 and 45 mg dm-3). It was evaluated the following morphometric traits: plant height, length and width of the leaf blade, number of tillers, dry mass of shoot and of roots at 60 DAS. The approximate dose of 25 mg dm-3 of phosphorus provided better initial development and forage production in all cultivars evaluated of Panicum maximum. Mombaça cultivar has better initial development and forage production about to the others.

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Published

2016-12-06

How to Cite

TORRES, F.E., TEODORO, P.E., RIBEIRO, L.P., OLIVEIRA, E.P. de, OLIVEIRA, M.V.M. de, SILVA JUNIOR, C.A. da and CORRÊA, C.C.G., 2016. Doses of phosphorus on initial development and forage production of cultivars of Panicum maximum . Bioscience Journal [online], vol. 32, no. 6, pp. 1537–1544. [Accessed7 December 2022]. DOI 10.14393/BJ-v32n6a2016-30196. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/30196.

Issue

Section

Agricultural Sciences