Data/hora: 13/06/2024 20:00:51

Provedor de dados: 	22	
País: 	Brazil	
Título: 	Effect of nitrogen fertilization and correlations between morphogenesis and structural parameters of grass pastures

Efeito da adubação nitrogenada e correlações entre parâmetros morfogênicos e estruturais em pastos de capim-braquiária	
Autores: 	Sales, Eleuza Clarete Junqueira de; Monção, Flávio Pinto; Machado, Silvia Layse Mendes; Ruas, José Reinaldo Mendes; Reis, Sidnei Tavares dos; Rigueira, João Paulo Sampaio; Pires, Daniel Ananias de Assis; Viana, Maria Celuta Machado; Silva, Edilaine Aparecida.	
Data: 	2016-12-07	
Ano: 	2016	
Palavras-chave: 	Brachiaria decumbens; Forragem; Manejo; Nitrogênio.	
Resumo: 	The objective of this work was evaluate the association between morphogenetic and structural characteristics of Brachiaria decumbens managed at different doses of nitrogen. The experimental design was a randomized block with four replications. Four levels of nitrogen fertilization were evaluated: 100; 200; 300 and 400 kg of N ha-1 as urea, divided in two doses during the rainy season (January to March) and the control treatment without fertilization. There was an increase in leaf appearance rate (LAR), leaf elongation rate (LER) and tiller number (NP) up to 21.4%; 23.8% and 50.5% for the highest dose of N (400 kg N ha-1) compared to the control group, respectively. There was a positive correlation (r = 0.53) (p&lt;0.05) between the LER and leaf life span (LLS). The phyllochron showed high negative correlation (r = -0.81) (p&lt;0.0001) with LAR. Regarding the final length of the stem, there was no correlation effect (p&gt;0.05) with other analyzed characteristics.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Português	
Identificador: 	http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/13498

10.1818/sap.v15i4.13498	
Editor: 	Scientia Agraria Paranaensis	
Relação: 	http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/13498/10568	
Formato: 	application/pdf	
Fonte: 	Scientia Agraria Paranaensis; Vol.15, No 4 (2016); 427-434

1983-1471