Agricultural yield components of dual purpose wheat cv. BRS Tarum under cutting and nitrogen fertilization handlings

Joao R. P. Ramella; Keli D. C. Libardi; Deise D. Castagnara; Marcos C. Mottin; Edleusa P. Seidel; Paulo S. R. De Oliveira

doi:10.5897/AJAR2014.9166

African Journal of
Agricultural Research

Abbreviation: Afr. J. Agric. Res.
Language: English
ISSN: 1991-637X
DOI: 10.5897/AJAR
Start Year: 2006
Published Articles: 6859

Full Length Research Paper

Agricultural yield components of dual purpose wheat cv. BRS TarumÃ£ under cutting and nitrogen fertilization handlings

Joao R. P. Ramella

Joao R. P. Ramella
State University of West Parana, Marechal Candido Rondon ? Parana ? Brasil, Number 1777, Pernambuco Street, Zip Code: 85960-000, Box 91, Center, Brasil.
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Keli D. C. Libardi

Keli D. C. Libardi
State University of West Parana, Marechal Candido Rondon ? Parana ? Brasil, Number 1777, Pernambuco Street, Zip Code: 85960-000, Box 91, Center, Brasil.
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Deise D. Castagnara

Deise D. Castagnara
Federal University of Pampa, Uruguaiana ? Rio Grande do Sul ? Brazil, BR 472 - Km 592, Zip Code: 97501-970, Box 118, Center, Brasil.
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Marcos C. Mottin

Marcos C. Mottin
State University of West Parana, Marechal Candido Rondon ? Parana ? Brasil, Number 1777, Pernambuco Street, Zip Code: 85960-000, Box 91, Center, Brasil.
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Edleusa P. Seidel

Edleusa P. Seidel
State University of West Parana, Marechal Candido Rondon ? Parana ? Brasil, Number 1777, Pernambuco Street, Zip Code: 85960-000, Box 91, Center, Brasil.
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Paulo S. R. De Oliveira

Paulo S. R. De Oliveira
State University of West Parana, Marechal Candido Rondon ? Parana ? Brasil, Number 1777, Pernambuco Street, Zip Code: 85960-000, Box 91, Center, Brasil.
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Article Number - 68A353C50652
Vol.10(8), pp. 811-820 , February 2015
https://doi.org/10.5897/AJAR2014.9166

Received: 20 September 2014
Accepted: 09 February 2015
Published: 19 February 2015

Abstract

This experiment aimed to study the effects on grain and forage productivity in dual-purpose wheat cv. BRS Tarumã under cutting handlings and nitrogen fertilization. The experiment was conducted in area of â€‹â€‹Rhodic Hapludox in the city of Marechal Cândido Rondon, Paraná State, in a randomized block design with 12 treatments and four replications. The treatments consisted of surface nitrogen levels (0, 60, 120 and 180 kg ha^-1) and number of cuttings accomplished â€‹â€‹(0, 1 and 2). The topdressing was split in two applications for handling of just a cutting (27 and 65 days after sowing - DAS), and three applications for handling with two cuttings (27, 65 and 96 days after sowing - DAS). Data were subjected to analysis of variance (p≤0.05). The use of one or two cuttings and the comparison between the first and second cuttings were done by F test (5%) whereas nitrogen doses were studied by regression analysis. For all variables, there was significant interaction of nitrogen doses in surface and the number of cuttings. Grain yield and its yield components were responsive to levels of nitrogen fertilization in surface as well as forage production and its quality, but the same factors were reduced with the use of cuttings. This handling increased the dry matter content and crude protein in grains.

Key words: Crop-livestock integration, Triticum aestivum, nitrogen, yield components, proximate composition.