Data/hora: 11/06/2024 05:35:38

Provedor de dados: 	1	
País: 	Brazil	
Título: 	Lettuce production in greenhouse under fertirrgation with nitrogen and potassium silicate

Lettuce production in a greenhouse under fertigation with nitrogen and potassium silicate	
Autores: 	Souza, Renan Soares de; Rezende, Roberto; Hachmann, Tiago Luan; Lozano, Cláudia Salim; Andrian, André Felipe Barion Alves; Freitas, Paulo Sérgio Lourenço de.	
Data: 	2017-04-11	
Ano: 	2017	
Palavras-chave: 	5.01.03.00-8 Lactuca sativa L.  protected cultivation  micro drip irrigation  silicon. Fitotecnia; Fertirrigação Lactuca sativa L.; Protected cultivation; Micro drip irrigation; Silicon.	
Resumo: 	The objective of this study was to evaluate the effect of nitrogen and potassium silicate on the productive and commercial aspects of curly lettuce, Vera cultivar. The experimental design was completely randomized (CRD), with ten treatments and three replications. The treatments, arranged in a factorial design according to the Plan Puebla III matrix (Turrent &amp; Laird, 1975), consisted of the combination of five doses of nitrogen (9; 54; 90; 126 and 171 kg ha-1) and five doses of potassium silicate (1.15; 6.90; 11.50; 16.10 and 21.85 kg ha-1). A control treatment without application of nitrogen and potassium silicate was also inserted. The crop was grown in a greenhouse and the doses were applied as sidedressing using drip micro-irrigation system. Total fresh matter, commercial fresh matter, non-commercial fresh matter, number of leaves and commercial trade index were evaluated. The commercial fresh matter and the number of commercial leaves per plant were affected only by nitrogen fertigation and increased linearly with the increase in the nitrogen dose of N, with the best responses observed at the highest dose of this element (171 kg ha-1). Potassium silicate had effect only in non-commercial fresh matter, not influencing the other characteristics.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/32897

10.4025/actasciagron.v39i2.32897	
Editor: 	Universidade Estadual de Maringá	
Relação: 	http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/32897/pdf	
Formato: 	application/pdf	
Fonte: 	Acta Scientiarum. Agronomy; v. 39, n. 2 (2017); 211-216

Acta Scientiarum. Agronomy; v. 39, n. 2 (2017); 211-216

1807-8621

1679-9275	
Fonte: 	Direitos autorais 2017 Acta Scientiarum. Agronomy