Data/hora: 01/06/2024 00:53:43

Provedor de dados: | 91
País: | Brazil
Título: | Canola response to nitrogen sources and split application
Autores: | Kaefer,João E.; Richart,Alfredo; Nozaki,Márcia de H.; Daga,Jacir; Campagnolo,Rodrigo; Follmann,Paulo E.
Data: | 2015-11-01
Ano: | 2015
Palavras-chave: | Urea; Ammonium sulfate; Protein content; Oil content; Brassica napus L.
Resumo: | ABSTRACTThe aim of this study was to evaluate the response of the canola crop to nitrogen (N) sources and split application. The experiment was carried out in two agricultural years (2009 and 2010), at the experimental unit of the Pontifical Catholic University of Paraná - PUCPR, Campus of Toledo. A completely randomized design in 5 x 2 factorial scheme was adopted in the experiment. The treatments consisted of five split applications of N at sowing and/or as top dressing (0 and 0, 120 and 0, 0 and 120, 40 and 80, 80 and 40 kg of N ha-1) and two N sources (ammonium sulfate and urea), with four replicates. The canola genotype Hyola 61 was used in the experiment, which was evaluated for plant height, number of plants m-2, shoot dry matter, leaf area, mass of seedpods plant-1, thousand-grain weight, yield and the contents of protein and oil in the grains. The results show that the variables were not influenced by the evaluated sources of N fertilization, but were significantly influenced by the split application of N, with the highest results obtained for the application of 1/3 at sowing and 2/3 as top-dressing (40 and 80 kg ha-1 of N).
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662015001101042
Editor: | Departamento de Engenharia Agrícola  - UFCG
Relação: | 10.1590/1807-1929/agriambi.v19n11p1042-1048
Formato: | text/html
Fonte: | Revista Brasileira de Engenharia Agrícola e Ambiental  v.19 n.11 2015
Fonte: | info:eu-repo/semantics/openAccess