African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6574

Full Length Research Paper

Nitrogen and sulfur applied to the coverage of a canola crop in no-tillage system

Onóbio Vicente Werner1*, Reginaldo Ferreira Santos1, Simone Silmara Werner2, Helton Aparecido Rosa1, Deonir Secco1, Samuel Nelson Melegari de Souza1 and Carlos Eduardo Camargo Nogueira1
1UNIOESTE – Western Paraná State University –Energy in Agriculture, Rua Universitária, 2069, CEP: 85.819-130 Faculdade, Cascavel, Brazil. 2Statistics and Agronomical Experimentation. ESALQ/USP, Brazil.
Email: [email protected].br

  •  Accepted: 07 May 2013
  •  Published: 09 May 2013

Abstract

Canola (Brassica napus L. var. oleifera) is an oilseed that belongs to the Brassicaceae family and has in its grains a content of 38% oil and 27% protein. The aim of this work was to evaluate the interference of different quantities of nitrogen fertilizer applied to the coverage of the Canola crop on direct and indirect components of the production of grains and oil. In that sense, an experiment with the Canola culture was implemented, in succession to the culture of soybean, with hybrid Hyola 61, under no-tillage system, in a soil classified as Eutrophic Red Latosol, located at 24°49’06” S and 53°16’44” W, in the experimental area of Andreis Agricultural Farm, in the municipality of Corbélia, Paraná State – Brazil. The experimental design used consisted of random blocks with 4 replications and 7 treatments, summing up to 28 plots, in an area of 882 m². For base fertilization, 28 kg ha-1 of N, 50 kg ha-1 of P2O5, and 50 kg ha-1 of K2O were applied. Treatments consisted of control, 25 kg ha-1 of N, 50 kg ha-1 of N, 75 kg ha-1 of N, 25 kg ha-1 of N + 27 kg ha-1 of S, 50 kg ha-1 of N2 + 54 kg ha-1 of S and 0.45 L ha-1 of N + 0.1 L ha-1 of S (foliar fertilizer Micro Xisto HF), applied to the coverage 42 days after the emergence of Canola seedlings. No significant statistical differences were observed among treatments on production components, except for oil content.

 

Key words: Oil, fertilization, production, Brassica napus L. var. oleifera.