Abstract
The hydroponic cultivation Lactuca sativa L. can offer producers greater economic profitability, fast financial return due to sanitary and nutritional quality. The objective of this study was to analyze the economic feasibility and profitability indicators of three cultivars of curly lettuce in a hydroponic system using different effluents and well water. The experiment was conducted in a protected environment of the State University of Paraíba-UEPB, Campus-II, in the municipality of Lagoa Seca-Paraíba. Experimental design was in a randomized blocks with plots subdivided in a 7 × 3 factorial scheme, with three replications whose factors were 7 hydroponic solutions and three lettuce cultivars. Variables analyzed included gross revenue; gross margin effective and total operating cost; gross margin total cost of production; leveling point effective operating Cost, total production; operating profit and profitability index. The cultivars: Verônica, Vanda and Thais presented the highest gross revenue and profitability index when irrigated with the Furlani solution (S1).
Highlights
The interest in using treated wastewater in irrigation is goal of more recent studies (Bonini et al, 2014), and became an attractive option, since it reduces the contamination by the direct discharge of sewage in water bodies, improving the conditions of potability, allowing the more rational use of water resources, being an alternative source of water available for agriculture (Martínez et al, 2013).According to Cavalcante, Deon, and Silva (2017), polluted waters can recover their quality and return to aquatic systems using sewage treatment, they can have multiple uses
Vol 10, No 7; 2018 cultivation in a hydroponic system and observed that the choice of the hydroponic system and the recirculation interval for lettuce acculturation depends on the quality of the water used in the preparation of the nutrient solution
The use of nutrient solution without hydroponic cultivation is of fundamental importance, the growth and development of the culture will depend on a suitable formulation (Oliveira et al, 2014)
Summary
The interest in using treated wastewater in irrigation is goal of more recent studies (Bonini et al, 2014), and became an attractive option, since it reduces the contamination by the direct discharge of sewage in water bodies, improving the conditions of potability, allowing the more rational use of water resources, being an alternative source of water available for agriculture (Martínez et al, 2013). According to Cavalcante, Deon, and Silva (2017), polluted waters can recover their quality and return to aquatic systems using sewage treatment, they can have multiple uses. Sewage of essentially domestic origin or with similar characteristics, after treatment, which called effluents from sewage treatment plants, can be reused for purposes that require non-potable water, so the treated effluents present a proportion of nutrients that are generally not suitable for the production certain agricultural crops. Vol 10, No 7; 2018 cultivation in a hydroponic system and observed that the choice of the hydroponic system and the recirculation interval for lettuce acculturation depends on the quality of the water used in the preparation of the nutrient solution. The use of nutrient solution without hydroponic cultivation is of fundamental importance, the growth and development of the culture will depend on a suitable formulation (Oliveira et al, 2014). The present work had the objective of analyzing the economic feasibility and profitability indicators of three cultivars of curly lettuce in a hydroponic system using different effluents and well water
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