CRESCIMENTO INICIAL DE COUVE-FOLHA EM FUNÇÃO DE DIFERENTES CONCENTRAÇÕES DE CHORUME DE VERMICOMPOSTAGEM.

The objective of this study was to evaluate the effect of different concentrations of vermicompost slurry on the growth of leaf cabbage seedlings, applied on a substrate based on the decomposed babaçu stem. The experiment was conducted in a completely randomized design with four treatments and four replicates. The treatments were constituted by four doses of vermicompost slurry in different concentrations, where: T1: 0; T2: 50; T3: 100 and T4: 150 ml L-1, applied directly to the substrate. The following variables were evaluated: leaf number, plant height, neck diameter, plant height / neck diameter ratio, root length, root volume, fresh root and shoot mass, dry root and shoot mass and Dickson quality index. The results of the analysis of variance showed a significant effect (p ≤ 0.05) of the vermicompost slurry concentrations on the results of all variables studied, presenting the best results for the concentration of 100 and 150 ml L-1. The treatments with 100 and 150 ml L-1 of vermicompost slurry are the most indicated to potentiate the growth of leaf cabbage seedlings. The most economical dose of 100 mL L-1 is recommended. [ABSTRACT FROM AUTHOR]