Produção de alface em vasos submetida a diferentes proporções de composto orgânico

Abstract

Studies using organic compost in the production of vegetables, mainly with the lettuce crop has been increasingly frequent, so that the search for healthy and alternative foods of low cost of production has increased a lot. The objective of this work was to evaluate the effect of organic compost produced from tree prunings with addition of bovine and goat manure on the production and quality of Lactuva Sativa crested lettuce, Mônica cultivar, cultivated in Yellow Latosol. The experiment was conducted in a protected environment, in the experimental area of the CCAAB, at the Recôncavo da Bahia University - UFRB, located in the city of Cruz das Almas-BA. The experimental design was completely randomized, with five replications. The treatments were composed of six proportions of organic compound added to the soil based on the volume: T1 = 100% soil and 0% composed; T2 = 80% soil and 20% compound; T3 = 60% soil and 40% compound; T4 = 40% soil and 60% compound; T5 = 80% sol and 20% compound e; T6 = 0% soil and 100% compound. The analyzed variables were crown diameter, number of leaves, root volume, fresh shoot mass, fresh leaf mass, fresh root mass, leaf area, leaf dry mass, dry mass of the shoot, dry mass of shoot , Root dry mass, total dry mass, plant height, total chlorophyll. The addition of organic compound contributed to the higher growth and productivity of the lettuce crop, when compared to the treatment without addition of organic compound. The treatments constituted between proportions 60% and 70% soil: compound, provided a greater development and growth for lettuce plants, which responded very well to organic fertilization.