Viabilidade agronômica da rúcula, hortaliça funcional, sob o efeito residual de espécies do bioma caatinga.

Abstract

Arugula is a nutritionally rich vegetable. Considered a functional food, it can be used to treat diseases and improve clinical conditions. This work was conducted at the Rafael Fernandes Experimental Farm, in the Alagoinha district, rural area of Mossoró-RN, from January to February 2017, with the objective of evaluating the agronomic viability of arugula, functional vegetable under the residual effect of species of the caatinga biome. The experimental design was the complete randomized blocks with treatments arranged in a 5 x 3 factorial scheme, with three replications. The first factor was constituted by four green fertilizer (0.0, 0.8, 1.6, 2.4, 3.2 kg/m2 dry basis) and second factor by the types of green fertilizers (jitirana, flor silk and grass). Initially radish was planted in plots of 1.4 x 1.4 m. After the crop was withdrawn, the arugula cultivated Cultivada was planted. The evaluated characteristics were: height and number of leaves per plant, yield; number of sauces and dry matter mass of the aerial part. The best agronomic performance of the arugula was observed in the amount of 2.4 kg/m2, with yield of 902.3 g/m2 and 30 arugula sauces. Among the types of fertilizers, jitirana presented statistical superiority in relation to silk flower and mattock for yield and number of sauces. The incentive for the cultivation of arugula is important because its benefits are directly related to the farmers who produce and commercialize, and the consumers who acquire this vegetable.