Crescimento inicial de plantas de couve manteiga (Brassica oleracea var. Acephala.) em proporções de três substratos

Abstract

The production of quality seedlings of kale (Brassica oleracea var. Acephala) is a challenge in organic agriculture, considering the variation between the different types of substrates, such as organic compost, earthworm humus and others. The challenge is to meet nutritional needs in relation to the properties of each substrate used, or mixtures thereof. Therefore, evaluating different substrates, often used in agricultural property, result of residues, can be of great value in the production of quality seedlings. The objective of this work was to evaluate the initial growth of kale on different substrates for the production of quality seedlings. The experiment was carried out in a greenhouse at the Federal University of Recôncavo da Bahia / UFRB, in a completely randomized design (DIC) with 7 treatments and 6 replicates, T0 (Control-Soil / Yellow Dystrophic ), T1 ( Soli+ 100g of Humus); T2 (Soil + 160g of Humus), T3 (Soil + 100g of Plantmax); T4 (Solo + 160g of Plantmax); T5 (Soil + 100g of compound); T6 (Soil + 160g of compound). The seeds of kale were purchased in local commerce and seeded in bags plastics for commercial seedlings. The evaluated parameters were: height and length of the plant (cm) and fresh and dry biomass of the aerial part. The results showed that the increase of nutrients, results in an increase in the initial growth of kale, being the treatments T2 and T5, those that presented greater increase of fresh and dry biomass the kale. The humus and organic compost are promising as substrates for the initial growth of kale, can be used in the production of seedlings.