ASPECTO NUTRICIONAL DO BIOCARVÃO NA PRODUÇÃO DE MUDAS DE RÚCULAS EM CONDIÇÕES SEMIÁRIDAS

Abstract

The production of quality arugula seedlings is one of the crucial steps for the success of the crop in the field. Thus, the objective of this work was to determine complementary dosages of biochar that enable better development of arugula seedlings. The experiment was conducted in a greenhouse of the Federal Rural University of Semi-Arid (UFERSA). The experimental design was completely randomized with six treatments (T1 - 0% biochar, T2 - 10% and 90%, T3 - 20% and 80%, T4 - 30% and 70%, T5 - 40% and 60%, T6 - 50% and 50% of biochar and sand, respectively) and ten repetitions. The evaluated characteristics were: Number of leaves per plant; Plant height; Root length; Neck diameter; Fresh and dry seedling mass. Data were subjected to analysis of variance. The response curve adjustment procedure was performed using the R software. The proportion of 50% of the biochar provided the best seedling performance, promoting significant improvements in the evaluated characteristics.