Abstract
ABSTRACT Arugula is a vegetable that has gained more highlight in the consumption, being rich in potassium, sulfur, iron, omega-3 and vitamins A and C. Availability of water and nutrients are limiting factors for production of this crop. In this context, the objective of this study was to evaluate the production of arugula subjected to different irrigation depths and potassium fertilization. The experiment was conduct between August and September 2015. The experimental design was completely randomized in split-plot scheme. Irrigation depths L1, L2, L3 and L4 (25, 50, 75 and 100% of crop evapotranspiration, respectively) represented the plots and potassium doses K1 and K2 (200 and 400 kg ha-1, respectively) represented the subplots. Although the highest yield was obtained with highest irrigation depth and highest potassium dose, it is recommended the cultivation of arugula with the lowest irrigation depth and the lowest potassium dose, considering the higher value of water use efficiency for this treatment.
Highlights
Arugula (Eruca sativa L.), called rocket salad, is an herbaceous vegetable from the Brassicaeae family (Borges et al, 2014)
Considering the importance of the arugula crop and the absence of information on its water-nutritional requirement, the present study aimed to evaluate the production of arugula subjected to different irrigation depths and potassium fertilization doses
The experimental design was completely randomized (CRD) in split-plot scheme, with five replicates, and each replicate consisted of three plants
Summary
Arugula (Eruca sativa L.), called rocket salad, is an herbaceous vegetable from the Brassicaeae family (Borges et al, 2014). According to Carvalho et al (2012), arugula has gained more and more space on the table of the Brazilian population and prominence in the market, because of its nutritional composition Still according to these authors, it is a crop highly sensitive to water deficit and irrigation is a very important practice for its good development and better yield. Another relevant factor in arugula production is its nutrition. Any nutritional imbalance can be irreversible due to the short growth period (Cecílio Filho et al, 2014)
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