Effect of irrigation depths and forms of fertilization on radish production and post-harvest - DOI: 10.7127/rbai.v1701226

Resumo

The objective of this study was to evaluate the effect of different irrigation depths and the form of fertilizer application on the morphological, production and quality characteristics of radish (Raphanus sativus L.) cv. Saxa. The experiment was carried out in the city of Petrolina - PE in a randomized block design, in split plots, with four plots and two subplots (4 x 2). The factors in the plots were 60, 80, 100 and 120% of the reference evapotranspiration (ETo), and the factors in the subplots were the forms of fertilization, conventional and fertigation. The variables analyzed were fresh mass, yield, firmness, root diameter, root length, titratable acidity, soluble solids and ascorbic acid (vitamin C). It was found that the irrigation depth influenced firmness and titratable acidity in a decreasing way. Fertigation promoted higheryield, fresh mass, root length, root diameter and titratable acidity, while conventional fertilization promoted greater firmness and soluble solids. Ascorbic acid showed a divergent behavior with the increase in irrigation depth as a function of the form of fertilization used in the radish crop.