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Covered nitrogen on study of two maize genotype groups in Gurupi, Brazil Sci. Agrar.Paran. / SAP
de Carvalho, Edmar Vinícius; Afférri, Flávio Sérgio; Peluzio, Joênes Mucci; Leal, Tarcísio Castro Alves de Barros; Rotili, Eliane Aparecida; Reis, Ana Luísa Lopes Ernesto.
The nitrogen is the most absorbed nutrient by maize, and its supply after seeding is common. However, its available for the plants is associate with soil and weather conditions and with kind of genetic material that is used, due the yield potential and the genetic base. This paper had the aim to evaluate two maize genotype groups at levels of nitrogen in covered, in Gurupi, Tocantins State, Brazil, season 2012/13. The experiments with 30 genotypes had two levels of covered nitrogen (0 and 150 kg ha-1) and they were seeding in two dates. The experiments with 12 genotypes had three levels of covered nitrogen (20; 80; 140 kg ha-1) and they were seeding in four dates. The experimental design was randomized blocks with three replications. For the analysis of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cerrado; Populações de polinização aberta; Tocantins; Zea mays.
Ano: 2016 URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/13480
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Covered nitrogen levels on the evaluation of maize genotypes in late seeding Sci. Agrar.Paran. / SAP
Carvalho, Edmar Vinícius de; Afférri, Flávio Sérgio; Peluzio, Joênes Mucci; Leal, Tarcisio Castro Alves Barros; Souza, Clóvis Maurílio de; Naoe, Lucas Koshy.
The aim of this work was to evaluate 12-maize genotypes and the effect of four covered N levels (20; 80; 140; 200 kg ha-1), in the late seeding conditions (01/15/2014 and 02/25/2014) at Gurupi-TO. The experiments were conducted in the randomized blocks design with three repetitions and 12 treatmanets. The statistical analyze was done in each seeding, and the N effect was studied by the regression (orthogonal polynomial). It was shown significant difference among the genotypes in the greater number of evaluated traits and the grain yield of variety V8 and double-cross HD12 was classified in the superior statistical group in the two seeding dates (in average of four levels of nitrogen). These genotypes had shown the highest values of productive efficiency...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Adubação; População de polinização aberta; Tocantins; Zea mays.
Ano: 2017 URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/15110
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