Desempenho da alface(Lactuca sativa L.) submetida a diferentes tipos de cobertura morta

Abstract

Dead cover consists of the application of organic material on the soil surface, with the aim of contributing to increase the productivity and quality of the crop. The objective of this work was to evaluate the effect of different types of mulch on the performance of curly lettuce cultivar Camila. The experiment was conducted in the field at the (UAPP) unit of practical classes and research at the federal institute of Piauí (IFPI) Campus Cocal. The experimental design used was randomized blocks, with four replications and six treatments, consisting of six types of dead mulch (T1 – No coverage, T2 – Coverage with Leucena, T3 – Coverage with grass, T4 – Coverage with gliricidia, T5 – Carnauba bagana and T6- Coverage with leucaena + grass + gliricidia). At 35 days after transplanting, the following aspects of the plants were evaluated: height and diameter of plants (AP and DP), number of leaves per plant (NF), fresh and dry mass of the aerial part (MFPA and MSPA), and productivity (PROD). All treatments were superior to the control (p< 005), except for the variable plant height (AP). The treatments that provided the best results were gliricidia mulch, and gliricidia + grass + leucaena for the number of leaves, fresh mass of shoots, dry mass of shoots and productivity. It is concluded that for the conditions of Cocal - PI, mulching is a practice that has been shown to be efficient in the cultivation of curly lettuce cultivar Camila