Effect of different levels of fertilization by irrigation on morpho-physiological characteristics of spinach - doi: 10.4025/actasciagron.v33i3.5007

• Autor(a) principal: Biscaro, Guilherme Augusto
• Data de Publicação: 2011
• Outros Autores: Marques, Rosangela Juliana Rosa, Batista, Camila Moreira, Monaco, Kamila de Almeida, Ensinas, Simone Cândido, Rezende, Rodrigo Kelson Silva
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Acta Scientiarum. Agronomy (Online)
• Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5007
• topic: Tetragonia tetragonoides; plant nutrition; liquid fertilizer; NPK; Tetragonia tetragonoides; nutrição de plantas; fertilizante líquido; NPK; Irrigação e Drenagem

The aim of this research was to evaluate the effect of fertilization on morpho-physiological characteristics of spinach seedlings (Tetragonia tetragonoides). The experiment was carried out at the Agrarian Science Faculty of the Federal University of Grande Dourados (UFGD), and used Murer® liquid fertilizer. The experimental design was randomized blocks, with six doses of liquid fertilizer in water for irrigation (0, 1.25, 2.5, 5.0, 10.0 and 20.0 mL L-1) and four replications. Two fertilizations per irrigation were done, at 8 and 22 days after germination (DAG). Morpho-physiological characteristics were determined. It was concluded that fertilizations by irrigation promoted a greater number of leaves and greater values of length, fresh and dried mass of aerial parts of plants, leaf area and dried mass of roots for spinach seedlings. The 20.0 mL L-1 dose resulted in statistically different results from those recommended by the manufacturer (5.0 mL L-1), increasing the number of leaves, aerial part length, aerial part fresh weight and leaf area.