Abstract
Nitrogen fertilization and water supply are determinant factors for production and physical-chemical quality of cherry tomato. The objective of this study is to evaluate the productivity and quality of cherry tomatoes, cultivar Carolina, produced under different irrigation depth and nitrogen treatments. The experiment was conducted in a protected environment in randomized blocks and a 5 × 3 factorial design with three replications. The treatments were integrated by the combination of five irrigation depth consisting of 50, 75, 100, 125 and 150% of replacement of the reference evapotranspiration (ETo), and three nitrogen treatments fertilization (common urea, urea with urease inhibitor and without the application of nitrogen). The productive and qualitative characteristics of tomato fruits were evaluated. Productivity was better responsive with the 125% ETo depth. The 100% ETo depth provided the highest titratable acidity. Nitrogen treatments did not promote differences in productivity and quality of tomatoes.
Highlights
Brazil is the eighth largest tomato producer in the world (FAO, 2015)
The first factor was that an irrigation depth, composed of 50, 75, 100, 125 and 150% of the reference evapotranspiration (ETo), and the second factor was three nitrogen treatments: 1-common urea (CU); 2-urea with urease inhibitor (UI); 3-without nitrogen (WN)
titratable acidity (TTA) among the physical-chemical characteristics of tomatoes showed an interference of irrigation depth
Summary
Brazil is the eighth largest tomato producer in the world (FAO, 2015) This crop stands out because of its social and economic relevance. The mini-tomato (Lycopersicum esculentum Mill) is mainly produced in the Center-West and Southeast regions of Brazil (Cunha, Sandri, Vieira, Cortez, & Oliveira, 2014). These authors emphasized that farmers in these regions constantly need new crop, water and nutritional management options, which would make it possible to maximize profitability. The cherry tomatoes have satisfactory market values according Maciel, Fernandes, Melo and Oliveira (2016) They have been more interested in farmers who spread their cultivation in a protected environment. For better yields and economic profitability, it is necessary that the factors inherent to nutrition, correct use of water, genetics and sanity be at adequate levels (Silva et al, 2013)
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